Windows 11 – C:Windows is a file not a directory of size 0 B. DISM tool try repair and other methods

C:Windows is a file of size 0 B.
What is happening in the system:

Explorer.exe
Location is not available.
C: not available.
Access denied.

WinAnotherOS:Usersuser01>C:
Access denied

WinAnotherOS:WINDOWSsystem32>C:
C:>
C:>cd Users
C:Users>
C:>cd Windows
The directory name is invalid.

The file or directory is corrupted and unreadable.
C:>attrib +r C:Windows
Unable to change attribute - C:Windows

C:>dir windows
 Volume in drive C has no label.
 Directory of C:
16.12.2022  13:54                 0 Windows
               1 File(s)              0 bytes

Have any ideas?
I got Windows 11 USB bootable and i can use Repair Your Computer. I tried like this:

X:sources>DISM /Online /Cleanup-Image /RestoreHealth

Deployment Image Servicing and Management tool
Version: 10.0.22621.1

Image Version: 10.0.22621.525

Error: 87

The cleanup-image option is unknown.
For more information, refer to the help by running DISM.exe /?.

The DISM log file can be found at X:windowsLogsDISMdism.log

After the first launch, such green squares resembling a QR code appeared on the screen, 7 rows and at the very top three or more blue lines horizontally. It’s not really GSoD.
I have little knowledge of the Windows event log. But there’s no way to check it?
Maybe there would be entries what exactly happened to this WINDOWS directory or what with the error.