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Welcome to the HP Forums :) I would like to take a moment and thank you for using this forum, it is a great place to find answers. For you to have the best experience on the HP forum, you could also visit our HP Forums Guide for First Time Here? Learn How to Post and More. I understand you are having issues with the computer restarts automatically. Don't worry as I have a few suggestions which should help you resolve this issue.
I take it as a privilege to share this platform with you. We value your relationship with HP and wish to serve you better.
For better clarity and to assist you better I would require more information regarding this.
- Could you provide me with the exact model of the PC? Use this link to find it: https://support.hp.com/in-en/document/c03754824 (Ensure you do not share any of your personal information such as serial, phone number, email ID, etc...).
- Did it begin after a recent windows or software update?
- Have you tried to update the Bios on your computer?
- Have you tried to check in the bios if it restarts?
While you respond to that, here are a few things you can do:
The best way to do that is using the HP Guided troubleshooter:
Click here to access it (simply select your description of the issue from the bottom of the screen to gain access to the next set of steps that should resolve your concern).
CLICK HERE FOR MORE STEPS AND INSTRUCTIONS.
Alternatively, you can go through this link which should be helpful: HP PCs - The Computer Restarts Unexpectedly (Windows 10, 8)
If the issue persists, I would suggest here is to run an extensive test on the System from F2(Please capture the failure ID for further assistance).
It takes about 2 hours to run. If it restarts during the system tests, then the issue is clearly hardware related and the unit needs to be serviced. If any component fails and displays a failure code, please make a note of it and contact HP phone support also, to get the unit serviced.
Could you please respond to this post with the details and with the results of the troubleshooting as this will help me in further assisting you.
Eagerly waiting for your response!
that said, If the information I've provided was helpful,
give us some reinforcement by clicking the solution and kudos buttons,
that'll help us and others see that we've got the answers!
Good Luck.