Ошибка access to the path is denied

I am having a problem where I am trying to delete my file but I get an exception.

if (result == "Success")
{
     if (FileUpload.HasFile)
     {
         try
         {
              File.Delete(Request.PhysicalApplicationPath + app_settings.login_images + txtUploadStatus.Text);
              string filename = Path.GetFileName(btnFileUpload.FileName);
              btnFileUpload.SaveAs(Request.PhysicalApplicationPath + app_settings.login_images + filename);
         }
         catch (Exception ex)
         {
               Message(ex.ToString());
         }
      }
}

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:UsersgowdynDocumentsVisual Studio 2008Projectshybridhybridtemp_loginimagesenviromental.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:UsersgowdynDocumentsVisual Studio 2008ProjectshybridhybridUser_ControlsImgloader_Add_Edit_Tbl.ascx.cs:line 242

Any ideas?

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.

answered Jun 19, 2018 at 4:13

I have also faced this issue when my window service started throwing the exception

System.UnauthorizedAccessException: Access to the path "C:\Order\Media
44aa4857-3bac-4a18-a307-820450361662.mp4" is denied.

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

answered Aug 2, 2018 at 12:07

answered Jul 3, 2014 at 14:26

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

if(itemUri!="")
        File.Delete(Path.Combine(RemoteDirectoryPath, itemUri));

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.

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

answered Jan 22, 2019 at 19:03

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.

1. Open Norton
2. Click the down arrow
3. Click History
4. Find activity by program
5. Click More Options
6. Click Exclude Process

answered Feb 14, 2020 at 18:11

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:

class Program
{
    static void Main(string[] args)
    {
        var path = "c:\temp\notfound.txt";
        try
        {
            File.Delete(path);
        }
        catch (UnauthorizedAccessException)
        {
            FileAttributes attributes = File.GetAttributes(path);
            if ((attributes & FileAttributes.ReadOnly) == FileAttributes.ReadOnly)
            {
                attributes &= ~FileAttributes.ReadOnly;
                File.SetAttributes(path, attributes);
                File.Delete(path);
            }
            else
            {
                throw;
            }
        }
    }
}

answered Jun 3, 2020 at 1:42

answered Jul 19, 2013 at 19:31

answered Jul 22, 2013 at 20:20

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.

answered Aug 1, 2018 at 10:02

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

You can read more here for details => https://learn.microsoft.com/en-us/windows/uwp/files/file-access-permissions

answered Jan 30, 2019 at 21:12

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.

answered Feb 4, 2019 at 21:22

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.

static void SaveVideoToDisk(string link)
{
    var youTube = YouTube.Default; // starting point for YouTube actions
    var video = youTube.GetVideo(link); // gets a Video object with info about the video
    File.WriteAllBytes(@"D:" + video.FullName, video.GetBytes());
}

answered Apr 30, 2021 at 8:25

I too faced the same problem when trying to do this after deployment at server:

dirPath = Server.MapPath(".") + "\website\" + strUserName;
if (!Directory.Exists(dirPath))
{
    DirectoryInfo DI = Directory.CreateDirectory(dirPath);
}
string filePath = Server.MapPath(".") + "\Website\default.aspx";
File.Copy(filePath, dirPath + "\default.aspx", true);
File.SetAttributes(dirPath + "\default.aspx", FileAttributes.Normal);

I granted permission in IIS to other group including administrator and my problem got solved.

In my particular case I was repeatedly creating and deleting 10000 folders. It seems to me that the problem was in that although the method Directory.Delete(path, true) returns, the underling OS mechanism may still be deleting the files from the disk. And when I am starting to create new folders immediately after deletion of old ones, some of them are still locked because they are not completely deleted yet. And I am getting System.UnauthorizedAccessException: «Access to the path is denied».

Using Thread.Sleep(5000) after Directory.Delete(path, true) solves that problem. I absolutely agree that this is not safe, and I am not encouraging anyone to use it. I would love to here a better approach to solve this problem to improve my answer. Now I am just giving an idea why this exception may happen.

class Program
{
    private static int numFolders = 10000;
    private static string rootDirectory = "C:\1";

    static void Main(string[] args)
    {
        if (Directory.Exists(rootDirectory))
        {
            Directory.Delete(rootDirectory, true);
            Thread.Sleep(5000);
        }

        Stopwatch sw = Stopwatch.StartNew();
        CreateFolder();
        long time = sw.ElapsedMilliseconds;

        Console.WriteLine(time);
        Console.ReadLine();
    }

    private static void CreateFolder()
    {
        var one = Directory.CreateDirectory(rootDirectory);

        for (int i = 1; i <= numFolders; i++)
        {
            one.CreateSubdirectory(i.ToString());
        }
    }
}

First just check the path if the colon(:) character is missing or not after the drive letter. If colon is not missing then you can check if access/write permission is granted for that path.
I had the same issue and i was only missing the colon, permission and everything else was fine.

C:folderpath

will work fine but,

Cfolderpath .........(missing colon)

will give you access denial error.