1. You need to do something about restoring your system, such as all these other people are talking about. Hit Start, Help, and search for "Restore." For example, my computer has Windows XP and it offers the following:
System Restore overview Help and Support Center overview Understanding System Restore Using the System Restore Wizard
2. Your keyboard is worn out and has Alzheimer's and you need a new one. When you try the new one, open it very neatly so you can return it if the problem persists.