I know, just had to update to windows 10 from windows 7 as win7 went end of life.
Now things are in different positions, things don't work as they did, it is slower, freezes more, lags, random bugs like last week when search on win10 broke because it now routes through bing because of course, when you search your local machine you want bing results, random updates and shuts downs.
but alas, this is the cost of "progress" I guess. Although am not sure what the benefits are, nice start splash screen maybe? (that also tries to force you to have a MS account *sigh*
But still, especially for a server, you should upgrade otherwise the system gets more and more insecure and left wide open for attack