Hi, I have Windows 7 x64 HP. I've used the backup and restore feature to backup on an external drive, and I've also burned a copy of the restore software that it wished me to burn onto a CD. My question is, if ever my PC fails or something and I need to restore my files, will I need anything beyond the external drive and the backup CD? Or will I need the original OS CD as well? I upgraded to Windows 7 from Vista but I don't have my Vista disc anymore (lost it a long time ago), which basically means the Windows 7 upgrade disc shouldn't work either (to be honest, I haven't touched the disc in nearly a year so I don't really know where the W7 update disc is either :/). Thanks.