Clean install etc cannot fix black screen with cursor

Hello, I have a Surface Pro 7 Plus with Windows 11.

In the past few months, I’ve been struggling with a recurring black screen with cursor after booting into the login screen.

Initially (3–4 months ago), I fixed it once by uninstalling a quality update. Since then, I avoided update + shutdown.

A week ago, I accidentally update-shutdown my laptop. It got stuck updating for 2+ hours, so I force shutdown when its updating. Since then, the black screen issue has been much harder to solve.

I tried: checking the disk drive health (no issues), uninstalling the latest updates, and restoring to a point before the update, it temporarily worked, but whenever the laptop is idle and the screen off or shut down, the black screen returns when i booted it.

I eventually did a clean install of Windows. After reinstalling, updating firmware, and applying all Windows Updates, the laptop worked fine after restart, but 3 or 4 days later, the blackscreen with cursor came back after shutdown/idle/sleep. I also reset PC from BIOS, but it didn’t help.

When i project the Laptop to an external monitor shows the same black screen with cursor, so i think its not because of graphic hardware. I also checked Device Manager after clean install it shows no errors in hardware.

The main issue is: after reinstalling and doing all of the above, the laptop sometimes works, but after every shutdown or when I turn off the screen with the power button, it gets stuck again on a black screen with cursor.

The last time it occured, i go to automatic repair, it always said no internet connection, eventhough the laptop should be connected automatically. When i try to go to Safe Mode, it also say there is a problem with Pin.

I’ve tried almost everything to fix this by looking the question in Microsoft forums, but the problem remains unsolved.

I also have 2 SSD and checking is it because the SSD. But i was clueless, all of SSDs have the same problem: blackscreen with cursor.

What else can I do to finally fix this issue?

Anyway, every blackscreen appeared, i tried to force shut down by press it in 10 second, the display laptop shows instruction to slide it down to turn it off, but it wont turn off with slide it down.

However, in these 3 days after i clean install, it works perfectly like a new one. But after being idle 2hours without charging, it became black screen again. After blackscreen, theres nothing that i can do except clean. install again and again, and maybe waiting the black screen to come again..

Please help me.