I still think Win2k was a great operating system and I wish I could go back to it, but you do eventually have to upgrade. I eventually had to upgrade Win2k to Win7 because of the many performance benefits and the lack of support for the OS.

Even though I personally hate literally almost every new feature of Windows 10 and the design of the entire OS, I'm still running it, simply because I get much better performance out of it than I do on Win7 - and I can generally customize my UX.