try their homepage and look at the manual for your model if you don't have a copy, you might be able to do a system recovery
There's nothing in the manual about how to do a system recovery without entering the password. Data backup isn't an issue as all my data is on the cloud.
I'm pretty sure this is a Windows problem -- I can use the Enter key to divert normal startup to the Advanced Options screen, but then the computer doesn't acknowledge any keystrokes after that. Something in Windows is killing communication from the keyboard.
Perhaps I confused the issue by listing all the things I HAVE tried. So let me be clear:
Problem: computer starts up normally and goes to the password entry screen, but keyboard doesn't work so I can't enter the password
2. removed and replaced main battery
3. attached USB keyboard
4. hit Enter key on startup: successful in opening the Advance Options menu, but am unable to take any of the actions because all require that I enter the laptop password
5. looked for an onscreen keyboard, but there isn't one because this isn't a touch screen computer