I upgraded a 2 week old HP laptop from windows 7 to windows 8 and all seemed to go well.
After finishing, though, my keyboard doesn't work correctly. In most programs and on webpages, the number keys do not work nor do the special characters accessed through the shift key. Sometimes they act like the space bar, other times they repeat the previously typed alpha character. All works perfectly in MSWord, however.
The numbers on the keypad do work in all programs.
I've checked the control panel and can't find any settings that appear to influence this - no accessibility settings, nothing.