Windows 10: PC SAYS LOCKING AND SHUTS OFF

While I am using my computer doing whatever, my computer randomly changes to a blue screen that says Locking with the windows 10 loading circle for a few seconds and the shuts itself down. I cant find a solution online and its been happening for some time. Thanks in advace for any help.

:)

 

PC Build Steps

Ok just because I like steps i am going to create some steps. Please give me the stamp of approval/disapproval

• Install system in case
  • Remember to connect SSD and optical to same SATA ports on motherboard
• Turn on PC
• setup HDD
• run blend test in prime95 for 30-60 min
  • run realtemp at the same time

• While in Prime95 test
  • if CPU goes above 70c in RealTemp, I have a leaky CPU
  • if my system locks up or blue screens, there is an instability in the system somewhere
  • if my system does not lock up or blue screen, my CPU is not damaged and I am in the clear!

What do you guys think??

 

PC Build Steps

1.1 - Ideally put optical in SATA 0, and SSD in SATA 1, this will cause the optical drive to be the default 1st boot option. You can change it manually if not, but I like it this way
2.infinity - yes, that's fine. if it's above 70 +/- 5 degrees, then it may just need a repaste/remount

 

shut off button

I don't want to log off. That takes several more steps. I want to shut down. It use to have a list of things to hit but somehow change to sign off or lock. I want the shut down to reappear.

Rogue