Windows powers down during boot, wtf?

When I power up my PC, the BIOS boots, then I see the blue window in the center of the screen as Windows 10 x64 is allegedly booting, then my machine powers down/off. If I then press the power button again, Windows 10 actually boots as it should. Why the frack is Windows 10 doing this, it is very annoying. I did google this already and saw an alleged solution, to uncheck the Windows 10 Fast Boot option, but that has not fixed this issue. I never had this problem with Windows 7 Ultimate 64 which I had on my PC until a few weeks ago when I bought Windows 10 64 and installed it. Any solutions? Is this a known bug?
Joe Coder

Caledon Ken said:

Hi Joe Coder. Welcome to the TenForums @Joecoder
Are you applying any Overclocks to system? I don't have your system but the system I have will try to Overclock and if unsuccessful at one overclock will powerdown, drop the overclock and try again. Ken

No overclocking. Now the past couple of days boot has been fine. I wonder is this is something to do with Windows 10 updates or something, it is frustrating when it happens, puzzling. I will check BIOS settings again, I know I did not overclock, but maybe there is a way to underclock or something.

Caledon Ken said:

I think when I looked at manual your Over Clock is set to "Auto" by default. Could be it has found its happy place and is now booting with same settings.

Yeah i just booted into my BIOS and saw some overclock and turbo settings set to Auto so i changed them two MANUAL which has the lowest setting of possible ranges. Let us hope this solves them problem! Great insight, thank you so much. I bet you are correct! I will strive to report back, could be a few days, if it seems to have solved the problem, so others will see from this example problem of mine.

Caledon Ken said:

Great. If after a few days you are comfortable please mark thread solved. Good luck.

I feel the problem is solved, I have had consistent clean boots now, so surprise shutdowns, about ten such boots in a row past few days. Just odd Windows 10 has this issue, Linux (Linux Mint) had not problems booting with default BIOS settings; I have removed Linux though, going all in with Windows 10 as I like the cleaner GUI look and feel and I really need Windows for composing music.