So I went ahead and did the Anniversary Edition update on my Windows 10 and it only lasted like 2 days before totally breaking my system. I started getting crazy registry errors which forced my PC to freeze up and become unresponsive about 5 minutes after start up. So I tried to do System Recovery and Refresh but neither worked and the problem still persisted. Had to do a fresh format and reinstall. Argh, but luckily had all my stuff backed up on secondary HDD.
Any of you having issues with Win10?