|Try Pasting in Safe mode. |
If it works there, something being loaded when Windows loads normally that is not loaded in Safe mode is preventing it from working properly
Remove any bootable CDs or DVDs in drives.
Press F8 repeatedly while booting the computer, don't hold down the key, until you see the "Advanced..." menu.
Choose Safe mode or Safe mode with networking.
(Some bioses have their own use for pressing F8 while booting. e.g. you may see a screen where you choose a device to boot the computer from. If you see something like that, READ the screen to find what key you press to exit that screen, e.g. Esc.
Press that key, then immediately repeatedly press F8 until the "Advanced..." menu appears. )