(http://s22.postimg.org/r5nfh36nl/Diablo-_III.jpg)
Blizzard recently ended support for Windows Vista and Windows XP. This means that users won’t be able to play a series of Blizzard games on their PCs.
Windows XP is still pretty popular
Windows XP hasn’t received any security updates since 2014, but users continue to run it, ignoring the severe security risks that come with this OS version.
More and more software developers are ending support for Windows XP and Blizzard recently joined the club. The company announced that it would shift its focus towards the newer versions of the operating system. Starting from October, games such as WoW, Diablo III, and Starcraft II will no longer run on Windows XP. To get rid of this restriction users will have to upgrade to a newer version of Windows.
According to Blizzard, most gamers have already upgraded to one of the newer versions of Windows. There have been three Windows releases since Vista and the users have enough choices.
Blizzard talked about ending support for Windows XP back in February, but it now confirmed the news.
source (http://windowsreport.com/windows-xp-gaming/)