USB Keyboard ALT keys not functioning.

[dbchris85]

The ALT Keys on my USB Keyboard used to work perfectly fine until around the 1st. I'm unsure of what caused this issue.

The computer I'm using is a laptop and both of the ALT keys on the laptop work perfectly fine.

The USB Keyboard I have has ALT keys but those don't function at all. They used to, but not anymore.

I've tried checking and unchecking sticky keys, looking at the On-Screen Keyboard, uninstalling, rolling back, and updating drivers... full system restores to middle of last month which is about a week before I suspected it stopped working.

Nothing has worked so far... what could this possibly be?

 

[Kaktussoft]

Same problem with another usb keyboard?
Attach keyboard to another pc/laptop. Same problem?

 

[dbchris85]

Both of the USB Keyboards that are consistent with this problem do work on any other computer. I have two keyboards, one older, and one freshly unpackaged new, same model.

I think it might be an issue in the registry because a while back I was trying to turn off StickyKeys in the registry. The method someone suggested didn't seem to work.