Question Black screen after applying a theme

Michael20

Prominent
Dec 10, 2020
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Hello,

I was trying to edit a Windows Theme (NOT located in Resources/Themes but in my Downloads folder) with msstyleEditor and pressed "Test".
The corrupt theme was applied and I'm getting now a black screen.

I've read Fix Black Screen on Windows 10 Caused by Corrupt Themes | Technastic but that corrupt theme is not listed under Resources/Themes.

I've used xcopy aero "Downloads\Corrupt Theme" /i but I do not know how to run copy aero.theme "corrupt theme 01.theme".
What .theme file is Windows using now? And where is it located?

(Windows 10 20H2. Unfortunately I did not have a restore point).

I'd appreciate your help.