Access to the path is denied что делать
6 авг. 2015 в 16:41
I have two computors with Assetto and now windows 10 that I have both updated, but since then, one of them gives me an error coed preventing the gam from starting :
Access to the path ‘C\Users\Michel\Documents\Assetto Corsa\\cfg’ is denied.
I tried lots of things thatwere suggested on the web but still cannot find the probleme. I can’t see why one conputor works and not the other. This is only since win 10 upgrade. Has anyone else encounter this problem with the win 10 upgrade?
Thanks
Why is access to the path denied?
I am having a problem where I am trying to delete my file but I get an exception.
Also I should note that the folder I am trying to delete from has full control to network services.
The full exception message is:
System.UnauthorizedAccessException: Access to the path ‘C:\Users\gowdyn\Documents\Visual Studio 2008\Projects\hybrid\hybrid\temp_loginimages\enviromental.jpg’ is denied. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.File.Delete(String path) at hybrid.User_Controls.Imgloader_Add_Edit_Tbl.btnUpdate_Click(Object sender, EventArgs e) in C:\Users\gowdyn\Documents\Visual Studio 2008\Projects\hybrid\hybrid\User_Controls\Imgloader_Add_Edit_Tbl.ascx.cs:line 242
32 Answers 32
An UnauthorizedAccessException means one of 4 things:
- The caller does not have the required permission.
- The file is an executable file that is in use.
- Path is a directory.
- Path specified a read-only file.
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I also had the problem, hence me stumbling on this post. I added the following line of code before and after a Copy / Delete.
Delete
Copy
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This is an old issue, but I ran into it while searching. Turns out that I was missing the actual filename component in the save path for SaveAs.
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When a user tries to connect to your Web site, IIS assigns the connection to the IUSER_ComputerName account, where ComputerName is the name of the server on which IIS is running. By default, the IUSER_ComputerName account is a member of the Guests group. This group has security restrictions. Try to grand access to IUSER_ComputerName to that folder
Here is very good described answer about IIS security
Hope this helps
I got the error because I didn’t realize that the destination should be a file. I had a folder as the second parameter (which works in cmd). and I got Unhandled Exception: System.UnauthorizedAccessException: Access to the path is denied. because C# File.Move wants a file there, not just for the first parameter, but for the second too, and so if you put a directory as second parameter, it’s trying to write a file like c:\crp when you have a directory called c:\crp .
this would be incorrect File.Move(args[0],»c:\\crp»);
So, this would be correct File.Move(args[0],»c:\\crp\\a.a»);
The same goes for File.Copy
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Right-click on Visual studio and click Run as Administrator
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If this is an IIS website that is having the problem, check the Identity property of the advanced settings for the application pool that the site or application uses. You may find that it is set to ApplicationPoolIdentity, and in that case then this is the user that will have to have access to the path.
Or you can go old style and simply set the Identity to Network Service, and give the Network Service user access to the path.
You need to modify the privileges of the folder you’re trying to delete from/save to. Right-click on the containing folder and use the Security tab to permit modify rights for the user your application runs under.
An UnauthorizedAccessException exception is thrown when the operating system denies access because of an I/O error or a security error.
If you are attempting to access a file or registry key, make sure it is not read-only.
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I have also faced this issue when my window service started throwing the exception
So as a solution, I checked the user account associated with my service, as shown in below screen capture

So in my case it was NETWORK SERVICE
And then went to the folder properties to check if the associated user account also exists under their permission tab. It was missing in my case and when I added it and it fixed my issue.
For more information please check the below screen capture

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same issue for me too, I was pointing the folder instead of file.
so make sure in path, give path+filename
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The exception that is thrown when the operating system denies access because of an I/O error or a specific type of security error.
I hit the same thing. Check to ensure that the file is NOT HIDDEN.
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Check your files properties. If the read-only is checked, uncheck it. This was my personal issue with the UnauthorizedAccessException.
I got this error and solved it in just a moment. Don’t know why all of my folders are read-only,I cancelled the read-only and apply it. However, it is still read-only. So I moved the file into the root folder, it works — so weird.
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I was facing this error because
Sometimes when I Combine the path with File Name and FileName = «»
It become Path Directory not a file which is a problem as mentioned above
so you must check for FileName like this
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I was trying to use System.IO.File.OpenWrite(path)
and it did not work because I was only passing OpenWrite() a path to a directory, but it requires a path all the way to the file you want to write. So a full path including the filename.extension at the end needs to be passed into OpenWrite to avoid UnauthorizedAccessException
In my case the problem was Norton. My in-house program doesn’t have the proper digital signature and when it tried to delete a file it gave the UnauthorizedAccessException.

If it give you a notification, you can handle it from there. In my case it didn’t give a notification that I noticed. So here’s how to keep Norton from blocking the program.
- Open Norton
- Click the down arrow
- Click History
- Find activity by program
- Click More Options
- Click Exclude Process
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To solve this problem, I follow the Scot Hanselman approach at Debugging System.UnauthorizedAccessException (often followed by: Access to the path is denied) article, the code with example is bellow:
I had the same problem on a newly moved website on a shared server. Solved through the web host panel (DotNetPanel) setting true the «allow write permissions». So if you are in a shared server before reviewing all code worth taking a look at the server configuration and could save you a lot of time.
Be aware that if you are trying to reach a shared folder path from your code, you dont only need to give the proper permissions to the physicial folder thru the security tab. You also need to «share» the folder with the corresponding app pool user thru the Share Tab
I had the exact error when deleting a file. It was a Windows Service running under a Service Account which was unable to delete a .pdf document from a Shared Folder even though it had Full Control of the folder.
What worked for me was navigating to the Security tab of the Shared Folder > Advanced > Share > Add.
I then added the service account to the administrators group, applied the changes and the service account was then able to perform all operations on all files within that folder.
For those trying to make a UWP (Universal Windows) application, file permissions are much more restricted, and in general is deny by default. It also supersedes the system user permissions. You will basically only have access to files in either
- Your install location
- Your AppData location
- Files selected through the File or Folder picker
- Locations requested in your App Manifest
If you’re using BitDefender there’s a good chance its Safe Files feature blocked your operation. This is a form of Ransomware protection that comes with some of its more advanced versions.
Make sure to grant your application access in BitDefender and try again.
Some more details can be found in this BitDefender support page.
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In my case it was my AVG anti-virus that triggered the exception.
I added my VS Projects directory to the "Allowed" list. And I had to add the executable to the AVG exceptions list after I copied the .exe to my App directory.
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I’ve had the same problem and I’ve managed to get it working by changing the partition on which the file will be saved. So, on line 5 I’ve changed @"C:\" to be @"D:\" and that resolved the problem.
After migrating from Visual Studio 2017 to Visual Studio 2019 I faced two exceptions with two of my applications which run properly under Visual Studio 2017 :
- System.UnauthorizedAccessException
- System.ArgumentException
It turned out that I had to add the executables of the two applications to the allowed apps of Avast Antivirus .
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I too faced the same problem when trying to do this after deployment at server:
I granted permission in IIS to other group including administrator and my problem got solved.
PowerShell: системное администрирование и программирование
Всё о PowerShell в Windows и на Linux. Системное администрирование Windows
Ошибка в PowerShell «New-Item: Access to the path ‘…’ is denied» (РЕШЕНО)
При работе с командлетами вносящими изменения в файловую систему (создание, изменение или удаление файлов и данных в них), может возникнуть ошибка
Пример команды, вызывающей данную ошибку:
Эту же самую ошибку могут вызвать командлеты:
- Clear-Item
- New-Item
- Remove-Item
- Rename-Item
В сообщении ошибки сказано, что доступ к указанному пути отклонён. Причиной является недостаток прав на запись, изменение, удаление файла, например, из-за того, что вы не можете записывать в выбранную папку.
Чтобы исправить эту ошибку, нужно запустить PowerShell с правами администратора. Как это сделать смотрите в статье «Как запустить PowerShell с правами администратора».
Быстрый способ запустить PowerShell с правами администратора прямо в командной строке:
Эта команда запустит версию PowerShell 5 или PowerShell 6 — в зависимости от того, что у вас установлено в системе по умолчанию. Чтобы запустить последнюю версию, которую вы установили вручную, то есть PowerShell 7, выполните команду:
Ошибка «Access to the path '…' is denied» на Linux
На Linux может возникнуть такая же ошибка при выполнении аналогичных команд:
Чтобы её исправить, запустите PowerShell с sudo:
В результате ошибка исчезнет и команды будут выполнять нужные вам действия:
Что необходимо сделать при ошибке System.UnauthorizedAccessException: Отказано в доступе по пути. C# WinForms?
Написал рабочую программу, преобразовал её к виду WinForms. В ней учтена простая система регистрации, где необходим файл с нужными данными — логин и пароль. Через проект SetupProject создал необходимую программу-установщик для своей программы. До этого без установщика всё работало прекрасно и слажено, никаких ошибок программа не вызывала. После того, как я установил свою программу и попытался зарегистрироваться, выходит такая ошибка: System.UnauthorizedAccessException: Отказано в доступе по пути «C:\Program Files (x86)\Default Company Name\Lagrange Setup\users.txt». users.txt — файл с данными о пользователях. Причём одна и та же ошибка возникает и при регистрации, и при авторизации. Вот полный код регистрации:
Сведущим просьба помочь разобраться в проблеме и наставить на путь истинный.