5 Solutions to Active Partition Not Found in Windows 10
Find active partition not found in Windows 10? Read this article patiently to get effective solutions to the issue. A handy freeware is offered to backup Windows before errors occur.
By Lily 
/ Last update December 29, 2022
The issue: active partition not found
An active partition is a partition on a hard drive which is set as the bootable partition and contains the operating system. Only one partition on each hard drive can be set as an active partition or bootable partition. If there is a problem with the active partition, your computer won’t boot successfully. Active partition not found is a common issue reported by a lot of users. Here is a real case:
“I keep getting ‘Active partition not found’ error on my HP laptop. It says press any key and then shows the message again. What do I do to fix it??”
Following are possible causes for the error of “Active partition not found! Press any key…”:
Windows installation hard drive is not detected by BIOS.
BIOS settings are set improperly.
System files are damaged or lost.
The Master Boot Record (MBR) disc has been damaged.
Windows boot files in system partition are no longer active…
Then, how to fix the boot partition not found error efficiently?
How to fix no active partition found in Windows 10 efficiently
According to the causes, there are five effective solutions to the issue of Windows 10 active partition not found:
Solution 1: Check if the Windows installation hard drive is detected by BIOS
1. Restart the computer and continuously press a specific key to get into BIOS. The key to open BIOS can be listed on the first screen that appears, before the Windows logo shows up. It is likely to be Esc, Del, F2, F8, F10 or F12.
2. Find Primary IDE Master, Primary IDE Slave, Secondary IDE Master, and Secondary IDE Slave, which can be listed under the Advanced tab. Then, check if they are detected or not.
3. If they are shown as None/Not Detected, it means that the BIOS doesn’t detect the hard drive. You can select None/Not Detected to Auto and restart your computer to see if the error is fixed. If the system disk information is displayed after IDE Master/Slave, it means that the BIOS can detect the hard drive and you can try other solutions below.
Solution 2: Set BIOS to default settings
1. Restart your PC and enter BIOS as you do in Solution 1.
2. You might see a line at the bottom that says Setup Defaults — F9 on many PCs. Press this key and confirm with OK or Yes to restore the default BIOS settings.
✎ Tips: On some machines, you may find the “default settings” option under the Security, Initialize, or Reset tab. Look for an option like Restore Factory Defaults or Reset All Settings.
3. Press F10 to Save and Exit. Restart your PC to see if the active partition not found error is fixed.
Solution 3: Repair system files via Startup Repair
1. Insert Windows 10 installation media and boot your computer from it.
2. Choose the correct time and keyboard type and click Next.
3. In the next screen, choose Repair your computer.
4. Go to Troubleshoot > Advanced options > Startup Repair. Wait for the repair process to complete.
Solution 4: Repair MBR via CMD
MBR is a critical disc structure that contains the Partition Table and besides a tiny bit of executable code for a smooth OS boot. Some boot difficulties, such as «Active partition not found, press any key. «, can be caused by a corrupted MBR. Therefore, repairing a corrupted MBR might be a viable option.
1. Insert Windows 10 installation media and boot from it.
2. Navigate to Repair your computer > Troubleshoot > Advanced options > Command Prompt.
3. Run the commands listed below, pressing Enter after each one.
bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /scanos
bootrec.exe /rebuildbcd
Solution 5: Set the system partition active
1. Open Command Prompt as mentioned in Solution 4.
2. In Command Prompt, type following commands and press Enter after each:
diskpart
list disk
select disk 0 (replace 0 with your computer’s primary disk)
list partition
select partition 1 (replace 1 with the system partition’s number on your computer)
active
exit
3. Restart your computer to see if the problem is solved.
If all the solutions fail, you can try system restore Windows 10 from boot if you have created restore points before.
Further reading: backup Windows in case that errors occur
Apart from the active partition not found error, you may encounter other unexpected errors. System restore can be the last resort to fix your issues, so it’s necessary to backup Windows regularly. The best free backup software, AOMEI Backupper Standard, offers you all-around backup solutions:
▶ Backup all kinds of data
You are allowed to backup your operating system, internal or external hard drives, and a particular partition on a hard disk. You are also allowed to backup documents, pictures, and videos via the File Backup feature.
▶ Keep backup versions up-to-date
As the data on your computer changes every day, you can set your backup tasks to run automatically with the Schedule feature.
▶ Increase backup speed
You are able to do incremental and differential backups to backup changed data only, thus improving the backup efficiency and saving storage space.
All Windows PC operating systems including Windows 11/10/8.1/8/7/Vista/XP are supported. Just download this freeware to have a try.
Use two functions in AOMEI Backupper to protect your computer from now on:
1. Create bootable media to boot your computer in case of boot failure.
✍Tip: You can also create a recovery environment with AOMEI Backupper Professional. With the Recovery Environment tool, you can easily perform system backup restore or other backups restore operations when the system crashes.
2. Perform system backup when the computer is in good condition.
To sum up
You can resort to the five solutions offered in this article to fix the issue of active partition not found in Windows 10. To get prepared for potential errors, you’d better backup Windows with AOMEI Backupper regularly. You can also use AOMEI Backupper as free PC clone software to upgrade hard drive on your computer. Try it now to discover more!
No active partition как исправить
The error “active partition not found” appears when starting your computer? In this post, 5 solutions are provided. Choose any of them in terms of your own requirement.
By Lucas 
/ Last Updated March 4, 2022
Error explanation: active partition not found
An active partition is a partition on the boot drive, which contains the operating system, used to boot your computer into windows. And there is only one partition can be set as an active partition to boot Windows. Thus, if you encounter the error “active partition not found press any key”, you should consider the following causes:
● The partition that contains boot files is inactive. The partition that contains the operating system has to be active so that your computer can boot.
● Master Boot Record disk is damaged. MBR is a special type of boot sector at the beginning of disk and contains crucial information about OS boot. It plays an important role in booting Windows? Click Wikipedia page to know more MBR information:
● The system disk cannot be detected by BIOS. When starting a computer, the BIOS would get the computer system started. If the system disk can’t be detected, your computer can’t start.
● The BIOS settings are set improperly. Incorrectly set may cause many issues, you can set BIOS to default setting to fix.
● Windows system files are corrupted . The system files have to be valid, otherwise, it can trigger boot issues.
How to fix “active partition not found” in Windows 7/8/10?
Now, follow the next context, no matter you are using Lenovo, HP, Dell, or running Windows 10, Windows 8, Windows 7, you can try these 5 solutions to fix the error “active partition not found”.
Solution 1. Launch Startup Repair
When Windows fails to start or some errors appear, you can first launch “Startup Repair” tool from installation CD. It is a repairing program to diagnose your system and fix the found problems.
Step 1. Insert the installation CD/DVD, and enter BIOS. Set the CD/DVD as boot drive.
Step 2. Select an appropriate language and time and click “Next”.
Step 3. In the install interface, choose “Repair your computer” > “System Recovery Options” > “Startup Repair” to start repairing your system.
And when it is finished, restart your computer.
If the error “active partition not found” is still there, try other solutions.
Solution 2. Set boot partition active
The error “active partition not found” appears during Windows 7,8,10 startups, it may be because the boot partition is inactive. So, how to set the boot partition to active? Let us walk you through the specific steps.
● If you have the Windows 7 installation CD
If you have the Windows 7 installation CD or other Windows system CDs matching with system, you just insert it to computer and follow the steps to fix your computer.
Step 1. Boot your computer and hit the functional key (Esc, Del, F2, F8, F10 or F12) to enter BIOS Setup, and set the installation CD as the boot drive.
Step 2. Choose the right language and time, and click “Next”.
Step 3. In the install interface, choose “Repair your computer” > “Command Prompt”.
Step 4. Then you will enter the Command Prompt Window, and input the following commands, and press Enter after each one.
● diskpart (the Diskpart window will be opened)
● list disk
● select disk n (n means you the drive letter of your system disk)
● list partition
● select partition x (x is the partition where the MBR at)
● active
When the “DiskPart marked the current partition as active” appears on the screen, restart computer.
● If you don’t have an installation CD
It may be complicated for computer beginners to set active via Windows installation CD and to operate Command Prompt. And you probably don’t have an installation CD.
Fortunately, you can turn to AOMEI Partition Assistant Standard Edition , which is free disk management software. It can help you to create a bootable media to set partition active. Let’s see the detailed steps.
✍Preparations:
A working Windows-based computer
A blank USB flash drive or CD/DVD. If there are some data on it, please backup the pen drive beforehand.
Step 1. Insert USB into a working computer. Install and run AOMEI Partition Assistant on it as well. Click “Make Bootable Media” and click “Next”.
Step 2. Select the USB Boot Device, then follow the instructions and make the USB bootable.
Step 3. Insert the bootable USB to the computer that got the “active partition not found press any key” error. And enter BIOS to set the USB as the boot drive.
Step 4. Then you will see the interface of AOMEI Partition Assistant, and right-click the partition that contains boot files, and select “Advanced” > “Set Active Partition”.
Step 5. Then click “OK” to confirm the operation.
Step 6. In the main interface, click “Apply” > “Proceed” to set the partition active.
When it is completed, restart your computer and check if it is fixed.
Solution 3. Repair MBR
MBR is a very important structure on the disk to contain the Partition Table and a small amount of executable code for booting OS smoothly. A corrupted MBR can result in some boot issues, like “ operating system not found ”.Therefore, repairing damaged MBR can also be an effective solution.
■ Repair MBR with installation CD
Step 1. Insert installation CD and boot computer from it. Then open the Command Prompt as a solution.
Step 2. Execute the following commands, press Enter after inputting each one.
● bootrec.exe /fixmbr
● bootrec.exe /fixboot
● bootrec.exe /scanos
● bootrec.exe /rebuildbcd
■ You can also repair MBR with AOMEI Partition Assistant
Step 1. Make a bootable USB with AOMEI Partition Assistant like the Solution 2 mentioned. And insert the USB to your computer, and set the bootable USB as the boot drive.
Step 2. When you see the AOMEI Partition Assistant, right-click the system disk and click “Rebuild MBR”
Step 3. Choose a correct MBR type according to your Windows system. For example, if your computer is running Windows 7, choose “Windows 7/8/10/2011/2012”.
Step 4. Click “Apply” > “Proceed” in the main interface to start rebuild MBR.
Solution 4. Check if the boot hard drive is detected by BIOS
Sometimes, the boot hard drive is not detected by BIOS. In this condition, the Windows can’t boot from it successfully. Then you have to make the BIOS detect the boot drive.
Step 1. Restart computer and enter BIOS Setup.
Step 2. Under the “Advanced” tab look up the “Primary IDE Master”, “Primary IDE Slave”, “Secondary IDE Master”, “Secondary IDE Slave”. And check if they are detected.
Step 3. If they are not detected, they would be shown as None/Not Detected. Use the arrow key to select it, and hit Enter and shift it to “Auto”.
Restart your computer and see if the error is fixed.
Solution 5. Set the BIOS to default settings
The error “active partition not found” can be caused by improper BIOS settings, follow the steps to set it to the default setting.
Step 1. Restart computer and enter BIOS, and find the “Load Optional Defaults” or other options with the same meaning, normally it is under the “Exit” tab.
Step 2. Hit the “F10” key to save and exit.
Conclusion
Commonly, the first solution can solve the “active partition not found” error. If it can’t, you could try the other solutions one by one. I hope they can help you out. For users without Windows installation CD, AOMEI Partition Assistant Standard is a great alternative to repair the “active partition not found” issue.
Moreover, you can upgrade to Professional Edition to unlock more functions to better manage computer and disk. For example, if your computer runs slowly, you can try allocating free space to C drive and, upgrade HDD disk to SSD, or align partition.
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5 Solutions to Active Partition Not Found in Windows 10
Find active partition not found in Windows 10? Read this article patiently to get effective solutions to the issue. A handy freeware is offered to backup Windows before errors occur.
By Lily / Last update March 29, 2022
Quick Navigation:
The issue: active partition not found
An active partition is a partition on a hard drive which is set as the bootable partition and contains the operating system. Only one partition on each hard drive can be set as an active partition or bootable partition. If there is a problem with the active partition, your computer won’t boot successfully. Active partition not found is a common issue reported by a lot of users. Here is a real case:
“I keep getting ‘Active partition not found’ error on my HP laptop. It says press any key and then shows the message again. What do I do to fix it??”
Following are possible causes for the error of “Active partition not found! Press any key…”:
Windows installation hard drive is not detected by BIOS.
BIOS settings are set improperly.
System files are damaged or lost.
The Master Boot Record (MBR) disc has been damaged.
Windows boot files in system partition are no longer active…
Then, how to fix the boot partition not found error efficiently?
How to fix no active partition found in Windows 10 efficiently
According to the causes, there are five effective solutions to the issue of Windows 10 active partition not found:
Solution 1: Check if the Windows installation hard drive is detected by BIOS
1. Restart the computer and continuously press a specific key to get into BIOS. The key to open BIOS can be listed on the first screen that appears, before the Windows logo shows up. It is likely to be Esc, Del, F2, F8, F10 or F12.
2. Find Primary IDE Master, Primary IDE Slave, Secondary IDE Master, and Secondary IDE Slave, which can be listed under the Advanced tab. Then, check if they are detected or not.
3. If they are shown as None/Not Detected, it means that the BIOS doesn’t detect the hard drive. You can select None/Not Detected to Auto and restart your computer to see if the error is fixed. If the system disk information is displayed after IDE Master/Slave, it means that the BIOS can detect the hard drive and you can try other solutions below.
Solution 2: Set BIOS to default settings
1. Restart your PC and enter BIOS as you do in Solution 1.
2. You might see a line at the bottom that says Setup Defaults — F9 on many PCs. Press this key and confirm with OK or Yes to restore the default BIOS settings.
✎ Tips: On some machines, you may find the “default settings” option under the Security, Initialize, or Reset tab. Look for an option like Restore Factory Defaults or Reset All Settings.
3. Press F10 to Save and Exit. Restart your PC to see if the active partition not found error is fixed.
Solution 3: Repair system files via Startup Repair
1. Insert Windows 10 installation media and boot your computer from it.
2. Choose the correct time and keyboard type and click Next.
3. In the next screen, choose Repair your computer.
4. Go to Troubleshoot > Advanced options > Startup Repair. Wait for the repair process to complete.
Solution 4: Repair MBR via CMD
MBR is a critical disc structure that contains the Partition Table and besides a tiny bit of executable code for a smooth OS boot. Some boot difficulties, such as «Active partition not found, press any key. «, can be caused by a corrupted MBR. Therefore, repairing a corrupted MBR might be a viable option.
1. Insert Windows 10 installation media and boot from it.
2. Navigate to Repair your computer > Troubleshoot > Advanced options > Command Prompt.
3. Run the commands listed below, pressing Enter after each one.
bootrec.exe /fixmbr
bootrec.exe /fixboot
bootrec.exe /scanos
bootrec.exe /rebuildbcd
Solution 5: Set the system partition active
1. Insert Windows 10 installation media and boot from it.
2. Navigate to Repair your computer > Troubleshoot > Advanced options > Command Prompt.
3. In Command Prompt, type following commands and press Enter after each:
diskpart
list disk
select disk 0 (replace 0 with your computer’s primary disk)
list partition
select partition 1 (replace 1 with the system partition’s number on your computer)
active
exit
4. Restart your computer to see if the problem is solved.
If all the solutions fail, you can try system restore Windows 10 from boot if you have created restore points before.
Further reading: backup Windows in case that errors occur
Apart from the active partition not found error, you may encounter other unexpected errors. System restore can be the last resort to fix your issues, so it’s necessary to backup Windows regularly. The best free backup software, AOMEI Backupper Standard, offers you all-around backup solutions:
▶ Backup all kinds of data
You are allowed to backup your operating system, internal or external hard drives, and a particular partition on a hard disk. You are also allowed to backup documents, pictures, and videos via the File Backup feature.
▶ Keep backup versions up-to-date
As the data on your computer changes every day, you can set your backup tasks to run automatically with the Schedule feature.
▶ Increase backup speed
You are able to do incremental and differential backups to backup changed data only, thus improving the backup efficiency and saving storage space.
All Windows PC operating systems including Windows 11/10/8.1/8/7/Vista/XP are supported. Just download this freeware to have a try.
Use two functions in AOMEI Backupper to protect your computer from now on:
1. Create bootable media to boot your computer in case of boot failure.
✍Tip: You can also create a recovery environment with AOMEI Backupper Professional. With the Recovery Environment tool, you can easily perform system backup restore or other backups restore operations when the system crashes.
2. Perform system backup when the computer is in good condition.
To sum up
You can resort to the five solutions offered in this article to fix the issue of active partition not found in Windows 10. To get prepared for potential errors, you’d better backup Windows with AOMEI Backupper regularly. You can also use AOMEI Backupper as free PC clone software to upgrade hard drive on your computer. Try it now to discover more!
5 solutions to Fix “Active Partition Not Found” in Windows 7?
The error “active partition not found” appears when starting your computer? In this post, 5 solutions are provided. Choose any of them in terms of your own requirement.
By Lucas / Last Updated February 2, 2023
Error explanation: active partition not found
An active partition is a partition on the boot drive, which contains the operating system, used to boot your computer into windows. And there is only one partition can be set as an active partition to boot Windows. Thus, if you encounter the error “active partition not found press any key”, you should consider the following causes:
● The partition that contains boot files is inactive. The partition that contains the operating system has to be active so that your computer can boot.
● Master Boot Record disk is damaged. MBR is a special type of boot sector at the beginning of disk and contains crucial information about OS boot. It plays an important role in booting Windows? Click Wikipedia page to know more MBR information.
● The system disk cannot be detected by BIOS. When starting a computer, the BIOS would get the computer system started. If the system disk can’t be detected, your computer can’t start.
● The BIOS settings are set improperly. Incorrectly set may cause many issues, you can set BIOS to default setting to fix.
● Windows system files are corrupted . The system files have to be valid, otherwise, it can trigger boot issues.
How to fix “active partition not found” in Windows 7/8/10?
Now, follow the next context, no matter you are using Lenovo, HP, Dell, or running Windows 10, Windows 8, Windows 7, you can try these 5 solutions to fix the error “active partition not found”.
Solution 1. Launch Startup Repair
When Windows fails to start or some errors appear, you can first launch “Startup Repair” tool from installation CD. It is a repairing program to diagnose your system and fix the found problems.
Step 1. Insert the installation CD/DVD, and enter BIOS. Set the CD/DVD as boot drive.
Step 2. Select an appropriate language and time and click “Next”.
Step 3. In the install interface, choose “Repair your computer” > “System Recovery Options” > “Startup Repair” to start repairing your system.
And when it is finished, restart your computer.
If the error “active partition not found” is still there, try other solutions.
Solution 2. Set boot partition active
The error “active partition not found” appears during Windows 7,8,10 startups, it may be because the boot partition is inactive. So, how to set the boot partition to active? Let us walk you through the specific steps.
● If you have the Windows 7 installation CD
If you have the Windows 7 installation CD or other Windows system CDs matching with system, you just insert it to computer and follow the steps to fix your computer.
Step 1. Boot your computer and hit the functional key (Esc, Del, F2, F8, F10 or F12) to enter BIOS Setup, and set the installation CD as the boot drive.
Step 2. Choose the right language and time, and click “Next”.
Step 3. In the install interface, choose “Repair your computer” > “Command Prompt”.
Step 4. Then you will enter the Command Prompt Window, and input the following commands, and press Enter after each one.
● diskpart (the Diskpart window will be opened)
● list disk
● select disk n (n means you the drive letter of your system disk)
● list partition
● select partition x (x is the partition where the MBR at)
● active
When the “DiskPart marked the current partition as active” appears on the screen, restart computer.
● If you don’t have an installation CD
It may be complicated for computer beginners to set active via Windows installation CD and to operate Command Prompt. And you probably don’t have an installation CD.
Fortunately, you can turn to AOMEI Partition Assistant Standard Edition, which is free disk management software. It can help you to create a bootable media to set partition active. Let’s see the detailed steps.
✍Preparations:
A working Windows-based computer
A blank USB flash drive or CD/DVD. If there are some data on it, please backup the pen drive beforehand.
Step 1. Insert USB into a working computer. Install and run AOMEI Partition Assistant on it as well. Click “Make Bootable Media” and click “Next”.
Step 2. Select the USB Boot Device, then follow the instructions and make the USB bootable.
Step 3. Insert the bootable USB to the computer that got the “active partition not found press any key” error. And enter BIOS to set the USB as the boot drive.
Step 4. Then you will see the interface of AOMEI Partition Assistant, and right-click the partition that contains boot files, and select “Advanced” > “Set Active Partition”.
Step 5. Then click “OK” to confirm the operation.
Step 6. In the main interface, click “Apply” > “Proceed” to set the partition active.
When it is completed, restart your computer and check if it is fixed.
Solution 3. Repair MBR
MBR is a very important structure on the disk to contain the Partition Table and a small amount of executable code for booting OS smoothly. A corrupted MBR can result in some boot issues, like “operating system not found”.Therefore, repairing damaged MBR can also be an effective solution.
■ Repair MBR with installation CD
Step 1. Insert installation CD and boot computer from it. Then open the Command Prompt as a solution.
Step 2. Execute the following commands, press Enter after inputting each one.
● bootrec.exe /fixmbr
● bootrec.exe /fixboot
● bootrec.exe /scanos
● bootrec.exe /rebuildbcd
■ You can also repair MBR with AOMEI Partition Assistant
Step 1. Make a bootable USB with AOMEI Partition Assistant like the Solution 2 mentioned. And insert the USB to your computer, and set the bootable USB as the boot drive.
Step 2. When you see the AOMEI Partition Assistant, right-click the system disk and click “Rebuild MBR”.
Step 3. Choose a correct MBR type according to your Windows system. For example, if your computer is running Windows 7, choose “Windows 7/8/10/2011/2012”.
Step 4. Click “Apply” > “Proceed” in the main interface to start rebuild MBR.
Solution 4. Check if the boot hard drive is detected by BIOS
Sometimes, the boot hard drive is not detected by BIOS. In this condition, the Windows can’t boot from it successfully. Then you have to make the BIOS detect the boot drive.
Step 1. Restart computer and enter BIOS Setup.
Step 2. Under the “Advanced” tab look up the “Primary IDE Master”, “Primary IDE Slave”, “Secondary IDE Master”, “Secondary IDE Slave”. And check if they are detected.
Step 3. If they are not detected, they would be shown as None/Not Detected. Use the arrow key to select it, and hit Enter and shift it to “Auto”.
Restart your computer and see if the error is fixed.
Solution 5. Set the BIOS to default settings
The error “active partition not found” can be caused by improper BIOS settings, follow the steps to set it to the default setting.
Step 1. Restart computer and enter BIOS, and find the “Load Optional Defaults” or other options with the same meaning, normally it is under the “Exit” tab.
Step 2. Hit the “F10” key to save and exit.
Conclusion
Commonly, the first solution can solve the “active partition not found” error. If it can’t, you could try the other solutions one by one. I hope they can help you out. For users without Windows installation CD, AOMEI Partition Assistant Standard is a great alternative to repair the “active partition not found” issue.
Moreover, you can upgrade to Professional Edition to unlock more functions to better manage computer and disk. For example, if your computer runs slowly, you can try allocating free space to C drive and, upgrade HDD disk to SSD, or align partition.
How to Fix Active Partition Not Found in Windows [Full Guide]
Are you facing the Active Partition Not Found in Windows issue when you open the Disk Management tool in Windows? If yes, stay connected with us to get assistance fixing this issue effectively.
An active partition is a partition present on the boot drive on Windows. This partition usually includes information that helps BIOS or UEFI discover where Windows is installed and how to boot into Windows. Every Windows installation can only set one partition as an active partition for successfully booting it.
The guide will include all those reasons in detail and let you know about the fixes.
Why does «Active Partition Not Found» Happen
Active Partition Not Found is one of Windows’s most annoying error issues that prevent you from accessing Windows. If you are eager to know the main reasons behind the same, we are enlisting the leading ones for you.
1. Inactive Partitions
The partition that includes the operating system must be active so that a computer system can boot up conveniently. The presence of inactive partitions in the boot files may lead you toward the annoying error issue Active Partition Not Found.
2. Damaged MBR Disk
A damaged MBR disk may also lead you toward the arrival of one of the most annoying error issues, i.e., Active Partition Not Found. The MBR is a particular type of boot sector present at the start of the disk.
3. BIOS does not recognize the system disk
If your system disk fails to be recognized by the BIOS, it may lead you to the annoying error issue, Active Partition Not Found.
4. Improper BIOS Settings
Improper BIOS settings may also lead you to the most annoying error issue. It may cause different types of problems in your Windows, and one needs to set the BIOS perfectly to default settings to fix it perfectly.
5. Corrupted system files
Corrupted system files also trigger the Active Partition Not Found issue. Ensure your Windows system files are valid and can ideally start boot issues. The system file can get corrupted because of the abrupt shutdown, malware affecting system files, etc.
Now that you know the possible reasons behind the same, you can quickly search the related solutions ideally.
How to Fix the «Active Partition Not Found» Error
It doesn’t matter which computer system or Windows you are using now; we are here to provide solutions that will work effectively on all platforms effortlessly:
All of the fixes mentioned above are efficient and ensure users have perfect and smooth access to their devices effortlessly.
Fix 1. Set System Partition Active
Setting the system partition active is a manageable task now. When it comes to charging system partitions, the primary tool that comes to mind is the EaseUS Partition Master. This disk management software offers the Set Active function to change the active partition quickly.
Windows 11/10/8/7 100% Secure
It is an all-in-one free partition manager tool designed to fulfill individual users’ needs effectively. And it is also easy to use.
Step 1. Run EaseUS partition manager software. On the disk map, right-click the target partition and choose «Advanced».
Step 2. Then, select «Set Active» from the drop-down menu. Click «Yes». And choose «Execute 1 Task(s)» and click «Apply».
Fix 2. Rebuild MBR
Master Boot Record is part of the Booting process, which allows the BIOS or UEFI to figure out Windows installation. If it gets corrupt, PC the UEFI will be clueless. EaseUS Partition Master offers a tool to rebuild MBR without losing data. Using the Rebuild MBR, you can select the drive and the OS type and rebuild it.
Windows 11/10/8/7 100% Secure
Step 1. Create a WinPE bootable disk
- Launch EaseUS Partition Master, and click «Bootable Media» on the toolbar. Select «Create bootable media».
- Click «Next» to finish the process.
Step 2. Boot EaseUS Partition Master Bootable USB
- Connect the bootable USB or CD/DVD to your PC.
- Press F2 or Del when you restart the computer to enter the BIOS screen. Set and boot your computer from «Removable Devices» or «CD-ROM Drive». And then EaseUS Partition Master will run automatically.
Step 3. Rebuild MBR
- Click «Toolkit» and choose «Rebuild MBR».
- Select the disk and the type of MBR. Then, click «Rebuild».
- After that, you can see «MBR has been successfully rebuilt on Disk X».
If you meet other partition errors or disk errors, EaseUS Partition Master can save you time and energy to finish this task. For example, it can find bad sectors and fix the corrupted file system by running disk surface test.
Fix 3. Force Detect IDE
IDE interface is an industry-standard adapter connecting IDE devices and helps them communicate with the BIOS or UEFI. It used to be an industry standard a few years ago. HDD IDE is a storage device connected to BIOS using the IDE cable. If your PC detects everything but IDE HDD (on which the Active Partition exists), you will receive the Active Partition Not Found error. Follow the steps to fix it.
Step 1. Restart the computer and press F2, F8, or F10 to enter BIOS.
Step 2. Then go to the Advanced tab option and then change the status of the following four IDEs to Auto from the Not Detected options.
- Primary IDE Master
- Primary IDE Slave.
- Secondary IDE Master
- Secondary IDE Slave
Fix 4. Reset BIOS Settings
Resetting BIOS settings restores the same to the last saved configuration. The process is quite helpful in reverting your system once you have added some changes to it. All you have to do here is:
Step 1. Restart your computer system and then enter BIOS successfully.
Step 2. Low locate the option «Load Optional Defaults» under the Exit option to move further with the process.
Step 3. Once done with the above process now, hit the F10 key. It will help you in saving and exiting the BIOS settings ideally.
Fix 5. Repair System Files
If you have gone through the above solutions but didn’t have found an absolute solution for your issue, you can go for repairing system files perfectly. Repairing system files helps in enabling the smooth functioning of Windows. The things you have to do here are:
Step 1. Install the Windows 10 installation disc on your device, then boot your computer system from it.
Step 2. Select the correct time and keyboard type on your device, and tap the Next button.
Step 3. Once done with the above process, select Repair your computer system to move further.
Step 4. Go to the Troubleshoot option, followed by tapping on the Advanced options.
Step 5. Once done, tap the Startup Repair option to proceed with the process.
Wait for the repair process to complete, and once done, enjoy seamless access over your Windows.
Conclusion
I hope you have fixed the active partition not found issue now. It is one of the most annoying issues that Windows users face and doesn’t allow the users to get access to Windows. We have provided you with different methods to resolve this issue efficiently.
However, if you feel it is difficult to go through the complicated processes, EaseUS Partition Master is a great option to ease things up. It is a features-loaded option that will ease up your journey with Windows and will ease up something for you. The platform is simple and easy to download and install, and it hardly takes a few clicks to enable the different things efficiently.
FAQs About «Active Partition Not Found» Error
If you have gone through the different detailed processes very carefully and still have left with some queries, here we are with the top FAQs that will ease things up for you.
1. How do I make a partition active in BIOS?
Making partitions active in BIOS is a minor deal. All you have to do here is:
Step 1. Launch the Command Prompt on your device
Step 2. Type the following commands followed by tapping on the Enter button:
- diskpart
- list disk
- select disk 0
- list partition
- select partition 1
- active
2. Why is the partition not active?
Suppose the partition on your Windows is not active. In that case, the chances are higher that your Windows does not have any primary partition or you mistakenly marked some other section active. Check out the mark partition as active grayed out to eliminate the same.
3. What does active partition mean?
The active partition is the partition that allows the computer to startup. It is always advised to keep the system partition or volume partition as a primary partition and mark it active to enable seamless startup processes.