my pc is showing restart again and again

[User10192024]

Hp pavilion 14  my laptop is restarting again na d again while turning on

[BeemerBiker]

If you can pass diagnostics then see if you can boot into windows safe mode and do a repair

Press F2 to run diagnostics.
If a component fails during the UEFI diagnostics then it needs to be replaced. Do not attempt to update the BIOS or do any repair to the OS if memory or disk show errors.

First read this article about safe mode. Skip down to 'Enter safe mode from outside windows. If F11 does not get you into system recovery then try turning the power on and off three or more times in a row.

Try that Startup Repair shown just above.

If that does not work then go for a Restore Point.

This video describes how to use a restore point. Ignore that it shows windows working. Clicking on System Restore will bring up the list of restore points similar to what is in the below video.
https://www.youtube.com/watch?v=sixGAIiPTlE

If there are no restore points or the restore point is so far back that you'll lose a lot of programs then you need to bring up the device manager and see if you can fix the problem.

Find the device that has the error icon and try to fix it.

Let me know what you find out.