• July 1, 2022

How to fix “MoUsoCoreWorker.exe is preventing Windows from going to sleep”?

MoUsoCoreWorker.exe prevents Windows from going into hibernation, which can be a problem as the computer stays on all the time. Sometimes this error appears after updating the Windows operating system, as a result, some applications begin to conflict. You can solve the problem by removing incompatible programs, or by changing some settings in the system.


Typically, MoUsoCoreWorker.exe wakes the computer from sleep mode to find information about the update status. The process tries to get the update information and repeats the procedure over and over. Therefore, you should apply one or more of the options described below to customize how this process works.

Solution 1: remove conflicting apps via Control Panel


  1. Right-click on the Start button and go to the Control Panel section.
  2. Go to the Programs and Features section (if not all directories are displayed, select the “Small icons” setting).


  1. Find the conflicting programs in the list of installed programs and remove them.
  2. Follow the instructions on the screen to complete the process.


Solution 2: disable system wake timers

How to turn off the wake-up timer:

  1. Go to the Control Panel as described in the previous option.
  2. Open the Power Options section.
  3. From the menu on the left, select Sleep Settings.
  4. Click Advanced Power Options.
  5. In the window that opens, follow the path: Sleep> Allow wake-up timers> Disable.
  6. Disable any wake-up timers to prevent the computer from waking up by itself.
  7. Reboot the device for the settings to take effect.


Solution 3: set automatic startup to fix MoUsoCoreWorker.exe


  1. Open the Run window (Win + R).
  2. Enter services.msc and click OK.
  3. In the window that opens, find Windows Update and right-click, select Properties.
  4. On the General tab, set the Startup Type to Automatic and click Apply and OK to save your changes.
  5. Restart your computer for the changes to take effect.


Solution 4: disable the Orchestrator update service

How to disable the service:

  1. Open Run (Win + R) and type services.msc, click OK.
  2. In the window that opens, find the Orchestrator Update Service and right-click, select Run as administrator.
  3. In the service options, right-click Update Orchestrator Service and select Properties.
  4. Open Startup Type and select Disabled.
  5. Click OK.
  6. Reboot your computer.

Solution 5: update Windows to fix MoUsoCoreWorker.exe

How to start updates:

  1. Go to the Control Panel as described in the first option
  2. Select the Windows Update section
  3. Check for updates
  4. Download and install updates from the list of available ones.


Solution 6: run the troubleshooters

How to enable automatic updates:

  1. Go to Control Panel again and select the Troubleshoot section.
  2. Next, go to Power Optimization and run diagnostics.
  3. Windows Update and Power Troubleshooters should answer some questions about how MoUsoCoreWorker.exe prevents Windows from going to sleep.


While these are all known ways to fix the problem, it is likely that the MoUsoCoreWorker.exe error should be resolved.

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