Upgraded from win8 N with the Windows Loader for pirated activation, and it worked and gave me a key (IMG:[invalid] style_emoticons/default/biggrin.gif)
Windows 7 Professional. I am interested in upgrading to Windows 10, but I am kind of lazy backing up all my important documents just in case something catastrophic happens.
I am currently using windows 7. There are too many UI issues that I have to want to use windows 8 and I'm forced to use VMs on certain projects for software engineering like linux and osx, so I like to have a default for home use that separates personal use from professional. The only other OS I could even imagine myself resorting to at this point is XP, or potentially windows 10 if it's cleaned up a bit. The only problem switching at home would cause is the fact that I'd have to invest in a bigger external harddrive to get all this hentai onto my new os, kappa.
My only issues with w7 is some minor driver problems that may actually be the fault of my peripherals rather than the operating system. But, aside from that I would totally recommend it for anyone who's interested in simplicity and convenience.
I also upgraded to Win 10, but for some yet to be found reason the boot up time has dramatically increased. That's especially weird since I have Windows on my SSD, so I have no explanation as of yet.