How to Fix a PC which Turns Itself On? – Techy Support
It happens because of change in settings, maybe your system settings changed. Most of the times you face this issue when the wake on LAN and fast startup settings enabled. Or maybe in settings power the device remotely setting enabled. This option is often enabled to make the remote control sessions of Team Viewer and other similar apps easier. This function can also harm your computer by the unauthorized function. This function makes the device more vulnerable.

