Top Definition
The new operating system that is so secure that has plenty of new stuff. It has the games Choose a Number and SimMan. It will be downloadable soon on It is a powerpoint game. SP means SusPicious
Josh: Hey I got the cool new operating system called Windows SP!

Kevin: So, Windows 98 SE is still better!

Josh: No!
by aar2697 March 29, 2007
4 Words related to Windows SP

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