[meloetta_344]

Name says it all. Please state what distro you use. I will start off... Linux Debian
Here are some of the more common Operating Systems:

Mac:
OS X v10.7 (Lion)
OS X v10.8 (Mountain Lion)
or others

Windows:
Windows 8
Windows 7
Windows XP
Windows Vista
or others

Linux:
Ubuntu
Debian
Red Hat
or others

Other:
Please specify

*Edit*
All of the Above:
(for those of you)

[Ryu Aurora]

I don't see an option for "All of them at once", so I'll abstain from voting.

[LeafWarrior254]

Windows XP.
Ew.

[Twiztidguy]

Windows 7 Ultimate 64-Bit... This is way better, but I still kind of miss windows XP lol.

[TechnoProdigy]

Windows 8 Pro 64-Bit. With ClassicShell, of course.

[dlgn]

Ubuntu Linux 10.10 64-bit. I would've updated, but I have less than 200 MB of free space due to having a tiny (150GB) hard disk, dual-booting with Windows 7 Ultimate (which won't boot lately, so I can't use it despite the fact that it's much faster for some reason), and having lost 75GB to a partition that I used for Windows Vista when I first got the computer, which got wiped by an incompetent computer technician who still got paid like 300 dollars for doing almost nothing, which I kept so I could try to get back the deleted files, which basically constituted everything I'd ever done...

[hippoface]

Windows 7 Ultimate 64-Bit... This is way better, but I still kind of miss windows XP lol.

Same.

[Tee]

Windows XP Pro (Toshiba Portege 7200CT notebook)
Windows Vista Business (Lenovo X61t convertible tablet)
Windows 7 Pro 64 bit (2x desktops + NAS/media PC)
Windows 8 Pro 64 bit (Macbook Retina Pro - plus MacOSX but hate it)

[hippoface]

Windows XP Pro (Toshiba Portege 7200CT notebook)
Windows Vista Business (Lenovo X61t convertible tablet)
Windows 7 Pro 64 bit (2x desktops + NAS/media PC)
Windows 8 Pro 64 bit (Macbook Retina Pro - plus MacOSX but hate it)

So..... Windows.

[Prodigy9]

Primarily Windows (7). Rarely Linux (Ubuntu). NEVER macs.