Buy Windows 7 and change the theme to XP : )
To change the look or if you have Windows 8 to improve it then go here for Start8 and ModernMix and different themes.
http://www.stardock.com and http://www.wincustomize.com
Windows 8 is what Microsoft should stop support on! They are doubling down on 8 by keeping the layout and only making minor changes to the look of it. Not allowing you to download the 8.1 as a separate file (where your license works) (there are hacks around this) The 8.1 update is 3.6GB! How would you like to do that any time you needed to install Windows for 1 pc let alone for multiple ones.
Read this from a guy who writes those big how to books on Windows. He finally came out and stated that Windows 8 is a disaster!
What the Heck is Happening to Windows?
http://winsupersite.com/windows-8/what-heck-happening-windows
ROFL...and they call Windows 8 an upgrade, ha!
I recently upgraded from XP to 8 on three desktop machines, one of which is a five year old Netbook, and like it a lot. Win 8 is a lot more robust than XP. I do use Start8 and configure it to boot directly to the desktop so it's just like the XP experience, but better.
I also recently got a Win8 phone and a Win8 tablet and like them quite a bit. The Metro interface is great on touchscreens.