Windows Service not starting on Windows 10 upgrade

Question

I wrote a windows service it it works and STARTS fine in most operating systems. I have narrowed down the fact that Windows 10 upgraded from windows 8 causes a problem where th

Answer 1

What fixed it for us is, if you can change the service executable yourself:

In the project file change the Prefer 32-bit flag to false, then reinstall the service.

Check your service with CorFlags.exe. The 32BITREQ and 32BITPREF should be 0.

Version   : v4.0.30319
CLR Header: 2.5
PE        : PE32
CorFlags  : 0x1
ILONLY    : 1
32BITREQ  : 0
32BITPREF : 0
Signed    : 0