My XPS-13 restarts by itself after selecting shut down. It seems this was a common problem a few years back and the solutions have not solved the issue. I have tried the following
Performed Windows 10 Updates
Performed Dell updates including latest BIOS
Tried Adjusting power options, including Un-Selecting Turn on fast startup (recommended)
Same behavior even in safe mode with networking off. Machine restarts after shut down.
If I sign-out of Windows 10 and then hold down the power button for 10-12 seconds the machine will shut down and stay off.
One idea I did not try was setting the SATA-controller to "AHCI" instead of "RAID..." that its currently set too in the BIOS. Was not sure what harm that may cause.
Should I try updating to Windows 11, something else?
You may experience a situation where your XPS 9360 automatically reboots or shuts itself down unexpectedly. When this issue occurs, the error message "ASF2 power off" may be found in the BIOS log. To help resolve this issue, upgrade the BIOS to version 2.4. 2 or later, from the Dell Support website.
Thanks, I confirmed that I have the latest BIOS for the 9360. The marching works fine in normal use, it only restarts when you ask it to shut down. I have tried a bunch of solutions from hunting the net but without any luck. Hopefully more folks will experience this and I will get an answer. Thanks again
More information, I reinstalled Windows 10 asking it to removal all data on the hard drive but use the local copy of Windows installation files. The problem remains. I am in the process of installing Windows 11 to see if that has any change. Since reinstalling Windows 10 after a clean install of the OS did not help, seems this is either a hardware issues or something in the latest BIOS. If anyone has any other ideas please let me know, the machine is out of warrantee so I cannot contact Dell without payment. Thanks
Windows 11 install completed, and the problem remains. The computer restarts immediately after a shutdown completes as if you selected restart rather than shutdown.
AdrianG001
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Posted February 11th, 2022 23:00
You may experience a situation where your XPS 9360 automatically reboots or shuts itself down unexpectedly. When this issue occurs, the error message "ASF2 power off" may be found in the BIOS log. To help resolve this issue, upgrade the BIOS to version 2.4. 2 or later, from the Dell Support website.