Locked out of computer by an Anti-Rootkit called UnHackMe

I installed UnHackMe and ran it, but when it should remove som files it restarted the computer and I was asked for microsoft account password. I didnt remember the password, so made a password reset from the micosoft web site, but it still says that its wrong pass… also internet access is blocked – its in flight mode… What do I do????

Thanks in advance for any advice