After installing updates on windows 7, keyboard doesn't work when windows lock screen pops up, and so unable to unlock PC

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  Hi All,

  I am not sure if this is right place for my problem.

  Yesterday my windows7 installed updates and required reboot.

  After reboot, chkdisk started, then when lock screen appeared I found that my keyboard doesn't work, so no way to unlock.

  The on-screen keyboard also doesn't work.

  The restore always ends up with errors.

  I tried all kind of stupid things, like checking that my key board is working, check other keyboard(s), etc. etc., and even more,

  when I restart PC, keyboard works, for example I can go to BIOS menu, navigate there, even go to recovery menu,

  navigate there, but as soon as lock screen comes, I can do nothing. Even Caps-Lock, Num-Lock don't work.

  Can you please help me?

  Thank you in advance,

  Davit

  Thursday, September 5, 2013 6:51 PM