What Is “Windows Modules Installer Worker”?

What is Windows Modules Installer Worker? 

TiWorker.exe (Windows Modules Installer Worker) is a Windows Update Service that looks for new updates and installs it to your pc. In other words, when your computer’s system is checking or installing for Windows update, this process will be running automatically.

What Is Windows Modules Installer Worker

I will show you How to fix TiWorker.exe (Windows Modules Installer Worker) High CPU?

Here are 2 solutions you can try to fix it. You may not have to try both of them; if Method 1 does not work, then you can try Method 2 to resolve the issue. In addition, you can try my Bonus Tip to solve your pc.

  1. Stop and disable the Windows Update service
  2. Change your Internet setting

Note: Both Method 1 & 2 will stop Windows Automatic update on your computer

Method 1: You stop and disable the Windows Update service

Only when the Windows Update service is running, can Windows installs or checks updates. So if you stop and disable the Windows Update service, Windows can’t install  or check any update. As a result,  the Windows Module Installer Worker (TiWorker.exe) process won’t use a large percentage of your CPU then.

Here is how you can do disable  and stop the Windows Update service:

1) On your keyboard, you press the Windows logo key  and R at the same time to invoke the Run box.

2) You type services.msc and click OK.

3) You should see the Services window again. Then you double-click Windows Update.

4) You set its startup type to be Disabled and you click Stop. Then you click Apply OK.

5) The CPU usage on your pc should return to normal. If it doesn’t work you can try Method 2 below.

Method 2: You change your Internet setting

The other way to stop Windows Automatic Update on your pc is to change your Internet to metered connection. See how:

Case 1: You are using a Wi-Fi Network
Case 2: You are using an Ethernet Network

Case 1: You are using a Wi-Fi Network

1) You go to Start => Settings => Network & Internet => Wi-FI. Then you click Advanced Options.

2) You tick on Set as metered connection.

You are done. You check if the problem still exists.

Case 2: You are using an Ethernet Network

1) On your keyboard, you press the Windows logo key  and R at the same time to invoke the Run box.

2)You type regedit and click OK.

3)You click Yes when prompted by UAC ( User Account Control ).

4) On the open window, you go to
HKEY_LOCAL_MACHINE => SOFTWARE , then you go Microsoft => WindowsNT => CurrentVersion => NetworkList => DefaultMediaCost
Then you right-click  DefaultMediaCost and you select Permissions.

5) You click Add...  Then you type your user name into Enter the object names to select and you click Check Names.
Click OK.

6) You click the user you just add, then tick on allow for Full Control.
Click OK.

7) You double-click on Ethernet. Then you set its Value data to be 2.
You click OK and close Regedit Editor window.

8) You reboot your computer.

Now Windows Modules Installer Worker (TiWorker.exe) may not cause High CPU on your Windows 10.

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What Is “Windows Modules Installer Worker”?
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