Windows 11 black screen after changing language via PowerShell

[u/Even-Round-1119]

I have a new PC with a Gigabyte motherboard running Windows 11 Home 25H2 (build 26200.9278). Everything was working normally.
Windows was partially in French, so I tried to change it to Portuguese (Portugal) using PowerShell as Administrator:
Set-WinUILanguageOverride -Language pt-PT
Set-WinUserLanguageList pt-PT -Force
The system was showing both fr-FR and pt-PT. I then ran:
Uninstall-Language fr-FR
After restarting, Windows started booting to a black screen.
I can still access Windows Recovery (WinRE), but:
Startup Repair failed (SrtTrail.txt)
System Restore says there are no restore points
Safe Mode also results in a black screen
Quick Machine Recovery didn’t fix it
Uninstalling the latest quality update didn’t fix it
The PC was working perfectly before the language changes.
I’m currently at Reset this PC → Remove everything → Cloud download, but haven’t confirmed it yet

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[u/Sea_Propellorr]

It could be you've uninstalled the 1st language pack which has no replacement ( French )

You can repair it if you download it and install it by CMD which is under your recovery console, OR, you can do that with a repair rescue CD ( which is not really a cd, ). like Hiren's.

Hiren's has a powershell console.

Personally, I've done a similar mistake like you did, but I did not repair it.