Windows Modules Installer Worker (TiWorker.exe) High CPU and disk usage


A common issue with Windows 11/10/8/7 is unexplained high disk usage that sometimes freezes all other system processes. In many cases, checking the task manager, it is found that the Windows Modules Installer CPU and disk usage is very high – sometimes even more than 50%!

What is Windows Modules Installer?

the Windows Modules Installer Where WMIW Where TiWorker.exe it checks for new Windows server updates and installs them on your computer system. This process can cause a load on the system, and in some cases, drive disk usage to 100%, which suspends or freezes all other processes. Rebooting the system will not work and the problem will not resolve itself.

Windows Modules Installer High CPU or Disk Usage

If the Windows Modules Installer shows high CPU and disk usage in Windows 11/10, try the following suggestions:

  1. Check if scheduled automatic maintenance is running
  2. Check if Windows Update is running
  3. Scan your PC with AV
  4. Kill the TiWorker.exe process
  5. Run the Windows Update Troubleshooter
  6. Run SFC and DISM
  7. Disable Windows Automatic Update

Let’s take a closer look at these methods.

1]Check if scheduled automatic maintenance is running

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Before you begin, you should check if your Windows is running the scheduled automatic maintenance task, and if so, give it some time, maybe hours, for it to complete. You’ll see your settings here: Control Panel > All Control Panel Items > Security and Maintenance > Automatic Maintenance.

2]Check if Windows Update is running

Usage can also be high if Windows Update is running, so take your time. If it doesn’t work, run Windows Updates and see if they are available and install them.

3]Scan your PC with AV

You may also want to scan your computer for malware. So run an antivirus scan.

4]Kill TiWorker.exe

After doing this, the next thing you can try is kill the TiWorker.exe process in task manager and restart it and see if that helps. But it is very likely that the problem will keep reappearing. Therefore, the service in question must be stopped.

5]Run Windows Update Troubleshooter

Run the Windows Update troubleshooter and see if it helps.

6]Run SFC and DISM

Run System File Checker and DISM tool to replace corrupt system files and repair corrupt system image.

7]Disable Windows Automatic Update

If nothing helps, you might want to see if you want to disable Windows Automatic Update. If you decide to do this, open the Services Manager. This can be done by opening the Run dialog by pressing Win + R keys and then running the command services.msc.

Now search ‘Windows Modules Installer‘ on the list. The list is in alphabetical order.

Double click Windows Modules Installer Worker and open the configuration window. Usually it is set to Automatic. Change the mode to Manual.Windows Modules Installer Worker High CPU and disk usage in Windows 10

Now search ‘windows update‘ in the services.msc window. Double click on it and open the settings. Change the mode from Automatic to Manual Same as in the previous case.windows updates

If you use Windows 8.1 Where windows 7open ‘Control Panel’ and click ‘Windows Update’ and then ‘Change settings’.Windows update properties

Change the parameter to ‘Check for updates, but let me choose to download and install them‘.

Windows 11/10 Users may need to refer to this post to disable Windows automatic update.

Reboot the system after completing the above procedure. The above procedure sets «Windows Update» to manual mode. So it won’t check for updates automatically and only when you command it. This is a workaround until you can figure it out.

Maybe booting into a clean boot state will help you solve the problem further. Remember to check and update your computer manually every week, in case you choose to follow the latest suggestion.

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Windows Modules Installer Worker (TiWorker.exe) High CPU and disk usage

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