login issue Login screen center all white

[Carol Byron]

yep my login screen central space appears all white, both SL  and FS  in this PC. When I use another pc they are ok. I also try with my Bitdefender antivirus disconected in this pc but it didn't solve the problem. So it all seems that it is some app , extention ot program I have  in this pc that causes it. Some Ideia what can be please? Thank you.

 

[SalvadorNL]

there was a 'tuesday' update this week, maybe something got corrupted

 this Could help;

https://support.microsoft.com/en-us/windows/using-system-file-checker-in-windows-365e0031-36b1-6031-f804-8fd86e0ef4ca