Windows 10: Stuck log in screen windows 11

I just purchased a new all in one pc for my business. After the initial set up for it, it restarted and took me to the sign in screen asking me for my email and password for my business, but it keeps saying email and password is incorrect. I tried my other Microsoft accounts and it still says the email and password are incorrect. My credentials still work with my older computers so I know it's correct.I tried going to safe mode with networking and it takes me back to the sign in screen. How do I fix this?

:)

 

Black Screen after Log on


Computer boots to windows log on,have no password here.After a minute on log on it go to a black screen,stays there forever. I can get to Task Manager from black Screen,lost on what to do next. Just want my Windows 10 back, not sure what caused this problem. Any Suggestion on what my next step should be?*Sad

 

Cannot log in. Log in screen stuck

Cannot log in. Keyboard adding different char



acters as well. Windows Version 20h2

 

Windows 10 stuck in log in screen. log in screen is not showing.

my log in screen suddenly disappeared. and i am stuck in log in screen. i cannot longer open my PC because log in screen won't show nor the users and password prompt. its just dimming in black.





After i press enter or click or other keys its just dimming in black without user log in and password prompt. and i am stuck.





i attempt to use windows recovery environment or shift + restart key but its not working. winRE not showing. its just normally restarted.
i attempt using bootable USB Drive inserted then restart but nothing happen.

i think the best way for this is reformatting, but i dont know how because i cant log in in desktop and windowsRE are not working too.

im run out of ideas . any ideas to solve this prob? i really appreciate . or any ideas how to force format in lock screen ?
thanks to who will response.