XP, Vista, and similar operating systems.

I have Windows XP with a Vista theme, which I downloaded from the internet. It's also called "Zver's Windows" because it was created by ZVER. It's very convenient, and it has everything you need. When I installed it, I didn't even have to install drivers or codecs; everything was included with the OS, plus a bunch of different programs. Overall, it's a great operating system.