All my icons are changed to notepad icons

you must right click on each type of file and choose "open with" then choose the appropriate application. this should correct the icons for you.

or go here and set the defaults

Control Panel\All Control Panel Items\Default Programs\Set Default Programs

It's a registry issue, I believe it's called the "Lnk Fix" but a lot of times you can run an "exe fix". Just search for those on google, you will find the .reg files to download. Make sure to reboot after you add them.