Yes, because it uses less resources than newer OSes. Windows 7 for me has no advantages over Windows XP but works slower. The only good thing in Windows 7 is search field integrated into main menu.
I guess I will have to upgrade either to Windows 7 or to Debian (if it won't work too slow) because many applications including browsers don't work on XP anymore.
Err Windows 7 has the advantage of not being incredibly insecure, which I would definitely consider a major advantage, probably the most important one for an OS...
Windows 10 is pretty resource efficient. There's even a stripped back 'long term support one' which is incredibly lightweight. Anyway, RAM is incredibly cheap now, I don't think you should be risking getting totally pwned for the sake of an investment in a few GB of ram.
