Windows 10: My pc randomly turns off then boots by its self

Just as the title says my pc cuts off with out any blue screen or any warning and just restarts it doesnt happen often it happens hours apart. It mostly happens when I am playing video games. It first happened after the recent update in windows 10 and after that it's just been concerning me ever since. Anyone that can help please assist and any input is greatly appreciated.


Specs:intel core i3 4150

Os windows 10 19041 build

Nvidia Geforce GTX 1050ti

8gb ram

:)

 

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."

 

PC will not boot or self repair

Thank you. However, after creating an ISO DVD and following your detailed directions, I still cannot boot my pc.

After booting with the ISO, and selecting Startup Repair, the application went through "diagnosing your pc" TO "attempting repairs" then "startup repair couldn't repair your pc."

I think I also found out how this mess started. I have a picture I can forward if requeted that shows system restore showed that there was an apparent windows update that took place, unbeknownst to me, at exactly the same time! It didn't allow me to
access it, or any other listed restore point.

Anyway, I'm still unable to work. Whats my next step?

 

PC turns it self on at 3pm

some reason my PC turns it self on at 3pm and dont know how or why, nothing in schedule tasks, nothing in MSCONFIG, checked the power settings