Windows 10: New gaming pc will randomly shut down then reboot by itself

so i have a new gaming pc and whwnever im doing stuff it will randomly turn of then reboot by itself after like 3 secs.


specs

intel core i5-2400k

8gb ddr3 rAm

250gb ssd

1tb hardrive

gefirce gtx 1050ti

:)

 

PC Randomly Rebooting. Not Temps!

My PC randomly reboots when I play a demanding game, its not the temps as they were 40 CPU and 60 GPU when it rebooted. It started hapening when I updated to W10, all drivers are up to date. Help?

 

Computer randomly reboots when I play games.


I get random restarts when playing games.
Is this something to do with windows 10 or Nvidia?

Not great with computers but I've only been having this problem the past week or so.

I have done a clean reboot and all that but it keeps happening.

Here are some errors I get in Event Viewer:

• Installation Failure: Windows failed to install the following update with error 0x80070643: Definition Update for Windows Defender - KB2267602 (Definition 1.217.854.0).
• Driver install failed, result=0x80004005 for devnode 'SAITEK\PROGRAMMABLEDEVICE\7&69BEA2F&0'
• The DSM service was delayed by 12 seconds for a driver query/download/install on device 'SAITEK\PROGRAMMABLEDEVICE\7&69BEA2F&0'
• The system has rebooted without cleanly shutting down first. This error could be caused if the system stopped responding, crashed, or lost power unexpectedly.

 

After Upgrade New laptop randomly shuts down.

After upgrading to Windows 10 My laptop will randomly shut down (without warning) during use. It doesn't seem to relate to what I am doing and it happens with random frequency. It started with random restarts and a notification popped up indicating that
reinstalling Windows 10 may be the solution to the problem, that it may not have downloaded correctly. Since then it doesn't restart randomly, it just shuts off. I have to press the power button to reboot.

Any suggestions or similar issues? Power button light also stays on each time this happens.