Hi
@CaseySJ SSD for windows 10 is a Kingston SA400S37 240G. I downloaded all drivers required for Intel, don't know if those were installed.
HERE'S WHAT I DISCOVERED
1. Computer would not freeze at log in if the Windows SSD was disconnected
2. After 2 more days of work, computer began to freeze at login and then during some work even with the SSD disconnected. I also noticed some mouse stutters every once in a while.
3. After 5 years of constant use with this Hackintosh, I know what these stutters and freezes mean: RAM. So in BIOS, I took my 64 GB DDR4 down to 2133 from 3166. Half a year before that, I had it past 4000. A few years back I also had to disable XMP.
SOLUTION
Taking the RAM down to 2133 solved all freezing and now the computer boots fine even with the Windows 10 SSD connected, even from a cold boot. I also run cinebench r23 on loop while opening every app on the computer at once and then render something in Davinci - all at the same time. That's my test for stability. It blasts through it. In fact, the OS is now snappier with slower RAM