I have an external keyboard for my laptop. fn key used to work perfectly fine but I think I pressed a combination that enabled fn key lock. keyboard doesn't have a button for the key lock. the thing I tried all the combinations of buttons that are on the internet that enables/disables fn key feature and they didn't work. lately I tried my keyboard on another laptop and the fn key was working fine just to make sure that the hardware button works fine. I also tried to uninstall the driver and reinstall it but didn't work. all I can think of right now is the windows registery for sure it contains a value for that my question is that how can I restore it to default so everything back to normal. about my OS I am running Windows 7. Appreciate all help : ). Thanks in advance.