W11 Black screen on Desktop. Explorer issue

Hello.

first post in this community as I am having a dreadful issue. I was transferring some files form a my PC to a smartphone and Explorer crashed, without warning.

I rebooted my PC and after the W11 Opening screen where you enter your password, I got stuck on a black screen.
My mouse was working and I could get to the Task Manager with my wireless keyboard too.
Looking at similar issues on the net, I believed that my System files got corrupted during the files transfer I was doing, lucky me.......

Anyway, I managed to open a CMD and get SFC/ scannow and the 3DISM commands to run fully.
I was optimistic it would fix the issue. It didn't.

If I open Task Manager I can see Explorer "running" but without any CPU activity. And trying to access the Exe location got me stuck at Not responding prompt.

what are my Options before a Windows reinstall?

I am on W11 PRO H2/2025 if that helps at all.

thanks so much