iamwotiam said:

3. I could do a clean install of 32 bit Win 10 if all else fails and expect it to be compatible. This is my last choice since I would have problems with converting files from X64 toX86.
I'm not sure what you mean by "converting files from X64 to X86". Data files are unaffected by the bitness of the OS.

Executables are a different story, of course. Most of mine are 32 bit, in 64 bit Windows, but they'd have to be re-installed after a clean install of the OS anyway.