This tips work on Windows XP, Windows Vista, Windows 7 (32bit and 64bit)
Want to change the name of a desktop icon, folder, file etc? Click whatever you want to rename, then click the F2 key and make your change!
To view properties menu of a file, folder, etc., highlight it and click Alt + Enter. Highlight My Computer and click Alt + Enter to view System Properties.
Click Control + P to open the Print Dialog.
Click Control + D to quick save a web page to your Favorites menu.
Quick Windows Explorer
Click the Windows Key + E to open Windows Explorer in a flash!
Quick-Lock Your Computer
(This tip only works if you have more than one user account on your computer and your account uses a password) Click the Windows Key + L to lock your computer. You’ll need to type your password to log back into your user account.