Files in Windows folder missing

[Stellar]

Hello,
Inside every folder in the windows installation drive is blank. Failed Windows startup Auto repair loop was occurring, tried to restore registry with CMD, and there couldn't locate the registry folder/files to copy.

So, in order to check Windows folder in that windows installation drive C, signed-in from another Windows(HDD), and found blank folders of Program Files, Program Data, Users and Windows. The disc space is still occupied with the invisible windows.

Is the windows recoverable? is this common?

 

[Neemobeer]

None of the directories should be hidden. The MFT may be corrupt if space shows occupied but there is nothing there unless everything was marked with the S or H flags

From a command prompt you can type
dir /A:H C:\Windows\System32
dir /A:S C:\Windows\System32
You should get some output if stuff is hidden

 

[Stellar]

None of the directories should be hidden. The MFT may be corrupt if space shows occupied but there is nothing there unless everything was marked with the S or H flags

From a command prompt you can type
dir /A:H C:\Windows\System32
dir /A:S C:\Windows\System32
You should get some output if stuff is hidden

The 'invisible windows' HDD is being used as secondary storage right now. Run from another HDD+OS or from installation disc?

Edit: CMD couldn't find any files in the directory, and no label. Tried in the Troubleshoot>Advanced option>CMD too.

 

[Neemobeer]

Are you looking at the correct drive? The drive letters are only logically assigned, so booting from a Windows install disk, or another drive will change the drive letters.

 

[Stellar]

Are you looking at the correct drive? The drive letters are only logically assigned, so booting from a Windows install disk, or another drive will change the drive letters.

Of course, looked into all of them, for the drive letters were changed.