pffft too eaay… WHAT ABOUT WINDOWSXPStarter? Or Windows2k
(aorry aaps)
Windows 2k for a week is painfully easy, as a matter of fact, i’ve done most of my work for a week with windows 2000.
okay xp starter
install gentoo
real men use mbr indeed
install XP RTM in a VM, then install every service pack and every update after SP3
Sounds interesting 
i’m currently doing that
try Windows 1.0 (the very first Windows version) I have downloaded it somewhere years ago, but I can’t remember where was it.