Have you ever had your PC turn on in the middle of the night for some unknown reason? It’s probably either network connectivity or someone connecting a USB device.
How to Stop Network Activity From Waking Your PC on Windows 7, 8 and 8.1
To edit this particular setting, we need to open the Windows Device Manager. To open it, press the Win + R keyboard combination, type “devmgmt.msc” and press enter. This generic method of opening the Device Manager allows the article to work on all recent versions of Windows.
Expand network adapters and right-click on the one you want to change the setting for, then choose properties from the context menu.
Here you will find a “Allow this device to wake up the computer” option. Uncheck the box to disable it. Optionally, you can leave it enabled and check the option “Only allow a magic packet to wake up the computer” which will prevent everything except Wake-On-Lan packets from waking up your machine.
Interestingly enough, you can also opt to change this same setting for a USB port. This might come in handy if you use for USB ports to charge your cell phone, for example.
On a side note, does anyone actually use Wake-On-Lan? If so, what do you use it for? Let us know in the comments.