If you think that newer versions of windows don't have anything to offer you shouldn't have to do anything at all
First, the only newer version of Windows that "has anything to offer" is Windows 7. Vista isn't as bad as some people have tried to claim, but once Windows 7 became available, Vista became meaningless and there is absolutely no reason to even consider it. Windows 8 is a mess. One of the all time worst.
But the real problem isn't that newer version of Windows don't have anything to offer. The problem is the expense of switching.. Whether it's an individual with one computer or a business with a few thousand, the cost far outweighs the benefits.
Then there is the dirty little secret of business, that isn't so secret. There are millions of computers running shitty, poorly written software that will stop working if you make the tiniest change to the underlying hardware or operating system. That makes switching even more difficult and expensive.