loading dots

After trying to narrow down the cause (https://forums.tomshardware.com/threads/windows-10-stuck-on-loading-dots.3745394/#post-22615583) I've found how to reproduce it, simply setting in bios the first slot as auto or PCIe 4.0 will make my Windows unable to boot 99% of the time. It posts and when...

I'm not sure if I should post this here or in /forums/windows-10.13/. But still, this issue is driving me insane, I'm seriously starting to lose my temper, I don't know the starting point, but my PC refuses to boot 95% of the time, it gets stuck on that "Loading dots logo" from Windows and gets...