Windows 10: My computer randomly turned off, but it somehow still remained on? Is this troubling?

I was on a discord call, and randomly my computer turned off, I heard the call audio completely cut out, my computer and mouse have lights on them, and they too turned off, but the RGB lights in my tower stayed on, and it sounded like it was still going. What could have caused this, and how do I prevent it in the future? I wasn't given an error code, everything just stopped and the screen went black, and I did try to turn off my computer using it's built it power button, but it didn't work. I had to turn off the power so my computer would shut down to get it working again.

:)

 

Computer Randomly Turns on From Sleep

I only saw this thread now, otherwise I would have suggested this sooner.
I had that same problem you are having, my computer was waking-up from S3 and the culprit was my X7 mouse.
powercfg -lastwake also listed the HID keyboard device which was an extension of the mouse.
Besides going in device manager and setting everything to not being able to wake-up the computer from S3, I also did this to the power profiles:



Worked for me.

 

Windows 10 freezes randomly

I had already tried turning off fast startup, to no avail.
Will look at the list you provided, thanks. Hard to do when computer freezes on the Windows loading screen though. *Biggrin

I had tried that as well... no result.

 

Pc problem, randomly doesn't turn on sometimes.

"
Fast startup is a feature in Windows that helps your computer start faster. You can use the following steps to enable or disable fast startup.

• Type Control Panel in the search box.
• Click Control Panel.
• Click Power Options.
• Click Choose what the power buttons do.
• Click Change settings that are currently unavailable.
• Scroll down to Shutdown settings and uncheck Turn on fast startup.
• Click Save changes."