Windows 10 won't log in after update

May 17, 2018
1
0
10
Last night I kept getting pop up asking me to restart the system to complete the windows update so I did. So after it completed, it got me to the login screen but wont log in at all. After i enter the password, it spins for a while and back to the login screen.
Resetting password doesnt help.
I tried to do a system restore but it prompted that i have to go back and choose the OS i wish to restore. The point is I only got 1 windows 10 installed. Then I tried to go back to previous version and it prompted there is an error and suggested me to Reset my pc.
I havent tried reset the pc i think it wants me to reinstall and that would be my last resort if i cant find solution here.
It is amazing an update can completely ruin the os. pretty genius. Anyways, any thought?