Keys Alt and Alt GR stopped working

The Alt and Alt GR keys on my laptop keyboard have stopped working earlier. I have idea of what has past.

I don't think it's a physical problem. Or one of them would not work.
What's weird, is that when I plug a desktop keyboard, Alt and Alt GR works on this keyboard, it still will not work on the keys of the laptop but...
Laptop: Asus N35SN, Windows 7 Home Premium 64-bit
I have a lot looking for a fix, but came up with nothing. Please help :(

If it's not a physical problem, it is probably a driver issue.  You can download the driver from the Asus website.  I also take a few Post-it notes and slide them under these keys in case there is crud beneath them.

Good luck.

Tags: Windows

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