I don't have access to this model. So I can't tell what's going on or if there's more to this story.
I will share that a very old laptop required the latest BIOS for W10 to work correctly.
In the meantime try a boot to SAFE MODE, create a new user account (make it local) and on the next boot try the new account.
I am running Win 10 64 bit. When I boot the system I get the welcome screen as normal. I enter my password and the system brings up the desk top. The desktop then appears and loads all icons. Once compete the screen goes black and reloads again. This continues non stop every second or second and a half. I cannot do anything.
I have tried booting from my win 10 recovery disk and it is not seen by the OS at boot.
I have performed the extended system test and all systems passed.
I have tried to reload the system from recovery sector and the system does not read the files.
Can anyone tell me what is going on and how to fix this?