[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Keyboard Layout]
"Scancode Map"=hex:00,00,00,00,00,00,00,00,02,00,00,00,00,00,3a,00,00,00,00,00
Save as disable_caps_lock.reg and run it.
Click on Start/All Programs/Accessories/System Tools/Disc Cleanup
When the dialog box comes up...