So i have been given this laptop by my girlfriends mum as its no use to them. The reason that is , is because it wont even start up. If i start it normally..it will restart constantly. In safe mode it will get to the poing where it says: loaded blablabla/classpnp.sys. i have tried changing the name of it to a .old and .bak file but then i get loaded on a disk.sys file! which then bsod's and restarts. help me please...its very annoying!