However, I intend to upgrade from Windows 8.1, but I bought Windows 8.1 and want to get the free upgrade for it and the Windows 7 preinstalled version. I upgraded from a fresh reinstall of Windows 7 from the restore media. I can't believe I am still talking about this computer's totally dysfunctional audio system now three years later! Seems most everything is working well in the RTM build of Windows 10.