#2485 Installing with the path C:\\ \

[Christoph]

Earlier today i accidentially created a folder with just a space as its name: " "
After testing a few things i tried installing 7-Zip to my machine using the path 'C:\ \' and that completely broke the program on my machine.

The funy thing is uninstalling 7-Zip via Windows "Add or remove programs" worked like without errors for the path 'C:\ [7-zip files]'
However it didn't delete everything, i think it left the manager and some dlls. Which i then removed with git bash and rm -fr

Even reinstalling the program didn't do much, because i can't access any drives via the manager. The first error message i got was "Access Denied", then when i reopened it, it showed me my 3 drives (C, E and G) and below that 3 other drives with similar sizes and their names were PhysicalDrive0, PhysicalDrive1 and PhysicalDrive3.

I cant use the option from the windows context menu to archive/unpack anything. When i try i get the error that it cant access/ find the 7zG.exe file (with the correct path in the error, context menu screenshot). I even tried the path via CMD and could access the file normally.

My guess would be that the first installation corrupted some registry/property and when i tried uninstalling it. These corrupt entries were left. So now it tries to read the corrupt entry gets read everytime and breaks the program completly

I added some screenshots from the errors, but reproducing it should be easy.
Just download the newest 7-zip installer and choose this path 'C\ \', then the outcome should be the same

[Christoph]

I almost forgot, some system specs:
Edition Windows 10 Home
Version 22H2
Installed on 27.09.2020
OS build 19045.4529
Experience Windows Feature Experience Pack 1000.19058.1000.0

Processor Intel(R) Core(TM) i5-10600K CPU @ 4.10GHz 4.10 GHz
Installed RAM 16,0 GB
System type 64-bit operating system, x64-based processor

[Igor Pavlov]

go one folder up and open Computer item.

\\.\

allows access ntfs/fat volumes on low level with administrator rights.