Please share the system model and operating system installed.
Please share the following information:
1. Does the laptop automatically restart after shutting down?
2. Does it happen while running a specific application?
3. Does the laptop overheat?
4. How frequently does it shut down and restart?
Please observe the laptop in BIOS for 1-2 hours. To access BIOS, press F2 key 2-3 times as soon as the Dell logo appears.
Hope this helps.
Please revert with the findings.
Thanks and Regards,
Ran system diagnostics and everything passed with no problems but the laptop still keeps shutting down and restartring continuosly.