Learn how to allow your computer to be woken up when it’s sleeping by timed events such as checking for Windows updates at 3am.
- Open the Control Panel in the Start menu.
- Open Power Options in the Control Panel.
Note: If Power Options is not available, change View by to Large icons at the top right of the Control Panel.
- Select Change plan settings next to the power plan you want to set.
- Select Change advanced power settings.
- Select Change settings that are currently unavailable in the Power Options window.
- Set Allow wake timers to Enable under Sleep and then click OK to save the changes.
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