I have trouble with the keyboard on windows 7 Home edition. The "main" keyboard doesn't work only extra (useless) keys work.Such as the email key, media player key and such. I can't do a system recovery. I checked my hardware manager there are warning sign on both keyboard and mouse (the mouse seems to work fine though). No driver repair/update seem to work. I tried Microsoft "fix it" tools and it only tells me there is trouble but can't solve anything. I tied a new keyboard too; no changes. Is there a solution other than formatting and re-installing windows?