The PC turns on by itself

I don't know if this has ever happened to you but it has happened to me several times: the PC turns on by itself. If you are wondering how this could have happened, in this guide I will reveal to you why when you turn off your computer after a few hours you find it turned on.

Se the PC turns on by itself and the only solution you adopted to avoid it was to disconnect it from the electricity grid, a solution must be found. Have you already run a full scan to check if you have a virus? The antivirus did not detect anything? Good! Then it's time to explain to you the different factors that can wake up a PC.

La network card it is certainly one of the components that if configured in a certain way could turn the PC back on. It is a function widely used by system administrators who need to connect to the computer remotely. To check that this option is not active you have to press F2 o Canc in the startup phases of your PC. This way you will enter the BIOS / UEFI. Here look for the rumors Wake On LAN e Wake On Wan. They are usually present in the menu that invokes the network functions.

These two items must be set to Disabled. Otherwise, they allow you to turn on the PC via a pulse sent either from the local network or from the Internet.

If the problem persists and the PC turns on by itself again, then the cause may be due to another device. Enter Windows and search for the Command Prompt to open it with the right mouse button with administrator permissions.

Enter the following instructions and press Submit on each:

• powercfg-loadwake
• powercfg -waketimers
• power -devicequery wake_armade

The first is to inform you about the reactivation history, the second declares if there are preset timers in Windows, the third is to find the list of devices currently enabled to reactivate the PC.

Usually the network card, keyboard and mouse are present.

Then move to the Control Panel> System and Security> System> Device Manager. Right-click each device and choose the item Property.

In the tab Energy Saver uncheck a Allow the device to wake the computer.

If you have a Mac that turns on by itself, then check that it is not programmed to turn on Launchpad -> System Preferences -> Power Management> Schedule and check that the option is not activated Activate or reactivate, in case you need to uncheck. Or you can go to the Sideboard da Launchpad -> System Preferences -> Other -> Console and check the log on time on the Console. In this regard, you can learn more by taking a look at: Troubleshoot Mac OS X with the help of the console.

If the problem persists you can try to reset the PRAM. This is the parametric memory where volume values, screen brightness settings, date, time and other system values ​​are stored. To avoid losing this information when you shut down your Mac, there is a built-in battery that powers it.

To reset the PRAM it is necessary to hold down the keys at the same time Command + Option + P + R start and wait for two or three initial boings.