Recovery completed. Upgrading to Windows 10 downloading now. Oh my data is going to take a hit this month. Guess I will eat into my tokens.
After following this thread, I share your concerns.
I would do a clean install just to be sure.
If you download the ISO and have issues with activation PM me or email me (I suppose you still have it).
I've gone to running my Win10 as a VM using OracleVM as the hypervisor on a Solaris11 base.
Running a VM allows the use of "snapshot" to restore the OS to a previous time.
Your hardware is also protected since the HDD is actually only a file rather than access to your physical drive.
Hoping the best 4 u