Any question answered...

Thanks hip. It is Windows 7 for tablets yes, he can't get into it though because he has no idea what the log in username or password are. So he could just reinstall or reformat Windows 7 and that would fix it but how can he do that as he can't get beyond the request to log in? Sorry for being dense am about as techy as a plank but said I'd ask here for him.

It should have a way of booting from usb or CD or a recovery mode? Then you don't need the login.

This kind of stuff but for Win7
http://www.pc-ap.fujitsu.com/support/recovery_process.html

Do you have the original box with "recovery media"?