One question I get asked a lot is how do you get into safe mode. This is actually quite easy. When you boot your computer you usually see a splash screen or a screen with information about your computer. After this you usually here a beep from your computer and it then boots. If you press F8 after the splash screen and beep you will be presented with a screen that will give you a few boot options. One of them will be safe mode. You can then use the arrow keys to highlight safe mode and hit return to select it. Your computer will not boot into safe mode.
If you have trouble getting to the screen where you select your boot options you want to just hit F8 every second after you boot your computer till it appears. If you get to the windows loading screen you have went too far and will have to restart your computer to try again.