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How to Enable or Disable to Allow Wake Timers in Windows 10

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A wake timer is a timed event that wakes the PC from sleep and hibernate states at a specific time. For example, a task in Task Scheduler set with the "Wake the computer to run this task" check box checked.

Important wake timers are a new class of wake timer in Windows 10 that includes things like reboots after a Windows update that requires one. They supersede all other settings.

This tutorial will show you how to enable or disable to allow wake timers to wake the computer in Windows 10.


CONTENTS:
  • Option One: To Enable or Disable Allow Wake Timers in Power Options
  • Option Two: To Enable or Disable Allow Wake Timers in Command Prompt





Enable or Disable Wake Timers in Windows 10 OPTION ONE Enable or Disable Wake Timers in Windows 10
To Enable or Disable Allow Wake Timers in Power Options

1. Open the advanced power settings of a power plan you want to enable or disable wake timers for.

2. Expand open Sleep and Allow wake timers. Select Enable, Disable (default on battery), or Important Wake Timers Only (default plugged in) for what you want, and click/tap on OK. (see screenshot below)

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Enable or Disable Wake Timers in Windows 10 OPTION TWO Enable or Disable Wake Timers in Windows 10
To Enable or Disable Allow Wake Timers in Command Prompt

1. Open a command prompt.

2. Enter the command(s) below you want to use into the command prompt, and press Enter. (see screenshots below)

(On battery: Disabled)
powercfg /SETDCVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 0

OR

(On battery: Enabled) - default
powercfg /SETDCVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 1

OR

(On battery: Important Wake Timers Only)
powercfg /SETDCVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 2


AND/OR

(Plugged in: Disabled)
powercfg /SETACVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 0

OR

(Plugged in: Enabled) - default
powercfg /SETACVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 1

OR

(Plugged in: Important Wake Timers Only)
powercfg /SETACVALUEINDEX SCHEME_CURRENT 238c9fa8-0aad-41ed-83f4-97be242c8f20 bd3b718a-0680-4d9d-8ab2-e1d2b4ac806d 2

Click image for larger version. 

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Click image for larger version. 

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That's it,
Shawn