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How to Allow Programs to Wake Computer from Sleep

This topic describes how to enable wake timers in Windows so that you could use Anuko World Clock alarms even when your computer sleeps or hibernates. If you don't have World Clock installed, feel free to download and try it.

In Windows 7 it is possible to configure the operating system in a way that prohibits programs to wake it from sleep or hibernation. A portable computer may be pre-configured as such by default.

What does it mean for World Clock users? After some period of inactivity, which is set up in Control Panel - Power Options, your computer may go to sleep. If programs are not allowed to wake up your system they will simply not operate. If you have alarms configured in World Clock they will be missed during sleep or hibernation time.

To allow programs to wake your computer in Windows 7:
  • Go to Start - Control Panel - Power Options.
  • Click on the Change when the computer sleeps.

Power Options applet in Control Panel
Click on the Change when the computer sleeps in Power Options

  • On the next screen click on the Change advanced power settings.

Edit settings for a power plan in PC
Click on the Change advanced power settings

  • On the next screen, expand the Sleep node and the Allow wake timers node under it. Depending on whether your computer has a battery or not, at least 2 variations are possible. They are described below.

A System with Battery (a Portable Computer)


Allowing programs to wake computer from sleep
Set both settings under Allow wake timers to Enable

  • Set both the On battery and Plugged in settings to Enable and click OK.

A System without Battery (a Desktop Computer)


Allowing programs to wake computer from sleep
Set the Allow wake timers setting to Enable

  • Set the Setting to Enable and click OK.

World Clock FAQ