How To Find Out What Woke Up Your Computer Last

Tags: Windows, computer, wake, woke, sleep

powercfg -lastwake

Use the command line to find what causes the PC to wake up

One way to find out what is causing a wake-up problem is provided by the command line. Open a command prompt with elevated privileges and enter this command:

    powercfg –lastwake

The last device that woke up the system will be shown.

To find out which devices are enabled to wake up the PC, enter this command

    powercfg -devicequery wake_armed

These commands are the same in Windows 7 on up through Windows 10.

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