Question Failed startup on cold boot

[fratorgabot]

Hello everyone,
I just built a new system and each time some time (~1h+) passes between when I turn off the PC and when I turn it on again, I find a Critical Event in event viewer that says: "That the system has rebooted without cleanly shutting down first"
I also noticed that that critical error is also always paired with an Error Event that says that: "Windows failed fast startup[...]"

I have to say that I didn't notice any problems during use and I'm not even noticing these "crashes" on cold boot, I've just been checking the event viewer to find problems.

I'm on the latest bios with a freshly installed W11 with all updates installed.
I already tried running sfc /scannow and the dism one to fix any problems with windows but the problem persists.

Do you have any ideas on what might be the problem? Should I just disable the fast startup?

MB: MSI x870 Gaming Plus [Bios v. 7E47v2A3]
CPU: 9800X3D
RAM: Team Group T-Create Expert EXPO 32GB (2x16) 6000Mhz CL30
GPU: RX 9070 XT
PSU: Corsair RM850x
SSD: Lexar M.2 NM790

 

[Lutfij]

Welcome to the forums, newcomer!

with a freshly installed W11 with all updates installed.
Did you recreate the USB installer for your OS to rule out a corruption? Did you install the OS in offline mode to later install all drivers with the latest versions in an elevated command, i.e, Right click installer>Run as Administrator?

Which slots are your rams populating on the motherboard? How are you cooling the processor?

 

[fratorgabot]

I didn't try to reinstall windows completely since I'm using this machine to work so I can't really have that much downtime during the week sadly.
The RAM modules are in slot 2 and 4.
The processor is cooled with a DeepCool AK620 and the temperatures are fine, never seen it past 75C and the frequency goes up and down as expected with load.
I don't really have any problems with it during use for both work and gaming, no crashes.
It's just that after shutting it down and waiting 1h or more, when I turn it back on I find those two errors in the event viewer.
If I turn it off and on right after, there are no errors in the event viewer.

I'm going to try and disable fast startup from windows for now and see if that "fixes" it and report back, I still want to find what's causing the problem but I also want to know if this fix can work.

 

[fratorgabot]

The PC was off for around 1 hour, maybe slightly less and it did not report any new errors in the event viewer when switched on.
I'll wait and see if it happens again tomorrow to verify that that's a viable "solution".

UPDATE: The PC booted without any errors even after staying off for more than 8 hours so turning fast startup off is a viable option to fix it