Only backspace works on startup

Pressing z no longer causes the augmented state, not sure why, but thanks for the help

Everything seems to be working normally, hopefully this won't happen again, thank you for your time and help.

I know this is an old thread but I ran into this exact same problem, on Windows 7 Ent. 64 bit. It occurred on my laptop, after I used a paper towel to wipe off my keyboard. As I was at the login screen, I couldn't see what was being typed but the only key that would type anything was the backspace key. if this was some key combination I pressed accidentally, what kind of feature is that? Who would want their keyboard to behave this way. Anyway, I guess I pressed enough keys which somehow corrected the problem. Very weird.

Hi guys,

I just ran into the same problem and it freaked me out. After pressing both CTRL's multiple times my keyboard functioned again. Apparently one of those buttons got stuck, as was previously mentioned here as an option.

Hope this helps others.

Tom