My two desktop PC's are old, all drivers installed via Windows update, everything works, no BSOD etc. On first boot up some stuff may just the basic drivers. just run Windows update once or twice, or...

What version of Windows 10 did he buy a License for? Why I ask is the version you get via the free upgrade is dependent on what version of Windows you upgrade from. 7 Ultimate gets you 10 Pro. If he...