Insider Fast Track Office
I for one was a beta tester on Windows 7 and Vista and to tell you the truth I hated both.
Windows 8 was not much better it improved with 8.1 but now 10 is here I can say with all honesty at last they have got it right, not perfect but getting there, and I have found, that if you use the browser and antivirus that comes with it, you should have trouble free computering.
All 8 systems that I look after have all been running fast and no freezes since using Windows 10
The only 2 Third party apps I have on all the systems is CCleaner and Auslogics