I gave into Microsoft's persistent nagging and upgraded my non-Avid PC from Windows 7 to Windows 10 just before the free upgrade period ended. Since then, performance has been wildly inconsistent. After the 1st upgrade, it was very sluggish. Then slowly performance began to improve. Finally, it was ALMOST back to where it was before the upgrade. Then Windows 10 does an automatic update and performance is terrible again and it's back to the same cycle of gradually increasing performance until the next update.
If I were experiencing the same thing on my Avid workstation I'd be pulling my hair out. (My Avid system is still on Win 7 Pro.) The inability to refuse updates on a professional computing platform is essential. Thankfully, I've got a few good years left on my Z800...and Windows 7 will be around for a while. By then, I hope Microsoft will come up with a professional OS option that restores control of updates to the end user.