Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

I was just typing in Firefox when my keyboard stopped working. I couldn't type in any program. After a reboot, however, my keyboard works fine.

Why would my keyboard spontaneously stop functioning? How could I determine the cause?

I do not have a wireless keyboard. I'm using only the embedded keyboard on my laptop.

Possible Windows 7 x64 issue? Or just a weird anomaly?

Note: If at all possible, I do not want to spend any money on taking it to a repair shop. It'd much rather have it fixed myself.

EDIT - 7/7/11: The function keys seem to be working. I can still toggle the backlight on my monitor with Fn + F8.

EDIT - 7/13/11: I have to use my wireless keyboard whenever my laptop keyboard stops functioning.

share|improve this question*t happens. – KCotreau Jun 19 '11 at 21:32
Did it happen only once? If so, it may be a random issue caused by curiosity. If it happens more often, than its a hardware issue that you won't be able to fix by yourself. It may also be a strange kind of virus, but I never heard of one with those symptomatic. – Michael K Jul 8 '11 at 7:30
@Michael No, it's happened on multiple occasions. I'm thinking it might be some type of malware, but what would stopping my keyboard from working hope to achieve? Other than frustrating myself by having to restart or use the On-Screen keyboard. – Aznfin Jul 9 '11 at 1:21

Most probably a hardware issue . This usually happens in desktops where keyboard is connected via ps/2 port and the motherboard doesnot support hotswapping and the wire gets accidently dislodged . Wait for this to happen again and then take your laptop for an inspection

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.