Want to crash your or friend's computer :)

Follow the given steps:

1. Start regedit.
2. Navigate to HKEY LOCAL MACHINE\SYSTEM\CurrentControlSet\Servic es\i8042prt\Parameters
3. Create a new DWORD value and name it CrashOnCtrlScroll
4. Right-click on this newly created value and click on Modify
5. Enter 1 in the Value data field and click on OK.
6. Close regedit and reboot your system.

Now whenever you want to crash the system, just press Ctrl+ScrollLk + ScrollLk.

i.e Hold right control key and press scrolllock key twice and you will see the blue screen a.k.a BSOD a.k.a Blue Screen Of Death or Microsoft consistent screen for all windows ( except Vista).