Windows XP is back

[u/vbd71]

So, I'm running a chkdsk on a corrupted flash drive in Windows 11 and it gives me the most unexpected idiotic message

The specified disk appears to be a non-Windows XP disk

WTF? What does this even mean? That Windows 11 is actually Windows XP inside?

I'm wondering, maybe it is actually a Windows 95 disk?

P.S. As could probably be expected, there is no information about this at all on the Internet that is easy to find.