okay my friend done his work exp at a school and there getting rid off their older pcs in need for new ones. how can he reset it?
Err, click Start > Shut Down > Reset Computer?
what do you mean by reset? do you mean make it able to just run like a normal PC, in that case he just needs to install windows or operating system of choice (it will wipe the hard drive but I'm sure that's not going to be the end of the world) and it should work fine.
you shoot the computer and buy a useful one
Download Ubuntu, burn the ISO to a CD, put the disk in te drive, format everything, and install Ubuntu!