Cannot mount ISO file in Windows 11

The simultaneous "inability to mount a file in Windows Explorer" and "inability to access cdrom resources" is highly likely tied to security software or setting which restricts cdrom access. This can be verified if you are able to load the image in powershell with: Mount-DiskImage -ImagePath "c:\sims.iso"

Gives a result like this:

Attached : True

BlockSize : 0

DevicePath : \.\CDROM0

FileSize : 3550216192

ImagePath : c:\sims.iso

LogicalSectorSize : 2048

Number : 0

Size : 3550216192

StorageType : 1

PSComputerName :

This means the iso was mounted. You will see an extra drive under you devices but will be unable to access this resource because some setting is blocking cdrom access.

Also please check the following key with Registry Editor:

Make sure it is disable.

If you were unable to mount the file either the iso is corrupt or you have corrupted your Windows installation.

Virtual Drive makers of any and all kinds will also run into the same problem; ability to mount ok, ability to read mounted contents denied. The more intelligent ones will report a mount failure error simply because the contents cannot be read thus cannot be verified.

Windows Overlord

Applies to All Editions of Windows (11 - 2000)

Superseding Microsoft Tech support by a Mile.

Don't know if you have figured this out yet. There is a program called Virtual Clone Drive for Windows 11 developed by slysoft (It has a sheep head with glasses as it's "mascot"). You download it from the SlySoft Official Website for Windows 11. Once installed go through the settings of the app and set how many Virtual Drives you want. Close the app then look for a Drive type icon in your Taskbar usually on the right side (it should be in the arrow box where you would group app in Windows 10). Right click the icon and a menu should pop up with the option to mount a image to a virtual drive and click it. Find the Iso you want to mount (for this instances it would be the Windows 11 Iso file). Click on the Iso and than click open. After that go to My Computer to see your Iso mounted to the virtual drive and run the setup. Sometimes it will automatically start once mounted but if not you can use the auto play option for Windows. You can also right click the Iso once mounted than click open and run the setup from there. It should be a fresh install that lets you choose the partition you want to install it to. Sometimes but not always it will give you a message about your previous Windows installation and put those files into a folder named Windows.old. You will be able to transfer your music, movies, documents, pictures and downloaded content from that folder to your Windows 11 desktop or wherever you might want to transfer them to. I hope this helps someone upgrade to Windows 11 successfully. Have a great day and Happy 4th Of July.

Hi, Barstuck,

Sorry to hear you're experiencing this issue.

Usually, this problem is caused by corrupted files on Windows. You can use these commands to find and repair the corrupted files.

1-Right-Click on Start then click on Windows Terminal (admin)

2- Type these commands.

sfc /scannow (and press Enter)

Dism /Online /Cleanup-Image /ScanHealth (and press Enter)

Dism /Online /Cleanup-Image /CheckHealth (and press Enter)

3- The DISM tool will report whether the image is healthy, repairable, or non-repairable. If the image is repairable, you can use the /RestoreHealth argument to repair the image.

4-Type this command and press Enter:

Dism /Online /Cleanup-Image /RestoreHealth

5-When finished, reboot your PC and check if the problem was fixed

If the problem persists, please attach a screenshot of the error message to help identify what is causing the problem.