See if you can update the drivers for the keyboard.
If that doesn't work, try the keyboard on another computer, and try another keyboard on this computer.
That should tell you if it's the keyboard or the Operating System
I recently purchased a seconhand computer and I am having difficulty with some of the keyboard keys.
Caps Lock - opens internet page
Windows KEY -opens internet page
Left alt key -opens search window
Alt Gr -Turns off compter
Right Ctrl key - Mutes the sound
Can anyone please help in making them do what they are supposed to do. Thankyou in anticipation of a reply.