When I run dir inside C:Tempmupdf (a directory two levels deep), I see both . and .. listed as expected:
C:Tempmupdf>dir
...
11/03/2026 15:26 <DIR> .
24/06/2026 14:48 <DIR> ..
...
But when I run dir inside C:mupdf (a directory directly under the drive root), .. is absent:
C:mupdf>dir
...
11/03/2026 15:26 <DIR> .
...
This is on Windows 11 (latest) with an NTFS volume.
I have memory that this wasn’t always like that.
Am I allucinating what I remember, or was there a change at some point? I was able to find an online VM with Windows 95, and the dir command showed a .. on both folders.
