[Solved] Windows Modules Installer Worker Windows 10 High CPU

By April Cai in Technical Tips Tags: Windows 10

Does this look familiar?

If you’re on Windows 10, and you’re seeing Windows Modules Installer Worker process taking up a high CPU usage, you’re not alone. Many Windows Users are reporting it. But the good new is you can fix it. This article gives you 2 solutions to try.

What is Windows Modules Installer Worker? 

Windows Modules Installer Worker(TiWorker.exe)a Windows Update Service, looks for new updates and installs it to your computer. In other words, when you’re checking for Windows update or install Windows update on your computer, this process will be running automatically. 

How do I fix it?

Here are 2 solutions you can try to fix this problem. You may not have to try both of them; if Method 1 didn’t work, go on to try Method 2 then.

1. Set Windows Update into manual mode

2. Update your device drivers

Method 1: Set Windows Update into manual mode

The easy way to fix it is to set Windows Update into manual mode.
Go with the steps below.

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

2) Type services.msc and click OK.

2) Double-click Windows Modules Installer.

3) Set its startup type to be Manual. Then click ApplyOK.

4) You should then see the Services window again. This time double-click Windows Update.

5) Set its startup type to be Manual.Then click Apply OK.

6) The CPU usage on your computer should return to normal. But if it doesn’t, go on Method 2, please. If it does, and you want to get rid of this error, your can stop your Win 10 downloading updates automatically. 

See how:

Case 1. If you using WIFI Network
Case 2. If you using Ethernet Network

Case 1. If you using WIFI Network

1) Go to Start > Settings > Network & Internet > Wi-FI. Then click Advanced Options.

2) Tick on Set as metered connection.

Case 2. If you using Ethernet Network

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

2) Type regedit and click OK.

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

4) On the open window, go to 
HKEY_LOCAL_MACHINE > SOFTWARE > Microsoft > Windows NT > CurrentVersion > NetworkList > DefaultMediaCost
Then Right-click  DefaultMediaCost and select Permissions.

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

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

e) Double-click on EthernetThen set its Value data to be 2.
Click OK and close Regedit Editor window.

Reboot your computer.

Now Windows Modules Installer Worker may not cause High CPU on your Windows 10.

Method 2. Update your device drivers

The old or incorrect drivers on your Windows 10 can cause a lot computer woes, including this error. You can update your devices manually or, if you’re not confident playing around with drivers, you can do it automatically with Driver Easy.

Driver Easy will automatically recognize your system and find the correct drivers for it. You don’t need to know exactly what system your computer is running, you don’t need to risk downloading and installing the wrong driver, and you don’t need to worry about making a mistake when installing.

You can update your drivers automatically with either the FREE or the Pro version of Driver Easy. But with the Pro version it takes just 2 clicks (and you get full support and a 30-day money back guarantee):

1) Download and install Driver Easy.

2) Run Driver Easy and click the Scan Now button. Driver Easy will then scan your computer and detect any problem drivers.

3) Click the Update button next to all the flagged driver to automatically download and install the correct version of this driver (you can do this with the FREE version). 

Or click Update All to automatically download and install the correct version of all the drivers that are missing or out of date on your system (this requires the Pro version – you’ll be prompted to upgrade when you click Update All).

4) Reboot your Windows 10. Go to Task Manager to see if the CPU usage is normal.

  • Hibari

    Just kill it lol

  • wassa

    On the wifi page, just clik on the network you are connected to. Then scroll down to metered connection

  • Viviane Lopes

    There is no such thing for me as well. For me, this option is shown after I click on my network. Single click on the wi-fi network you are connected to and it will be like 2nd option – Metered Connection

  • James Hill

    I am having huge problems with this issue. Surely, Microsoft know that half the planet are having issues with windows module installer, yet they seem completely silent on the matter. Isn’t it down to them to resolve the avaricious nature of the installer, in order to relieve the impact on the hardware? Whenever I turn my laptop on within 5 minutes my CPU is about 80%, the fan is operating at full tilt and the thing is running very slowly. This laptop is 2 months old, has reasonable spec and should not be suffering like this.
    HP G5 – core i7 – 256gb SSD – 8gb RAM.

  • kalish

    Hi, I don’t find Windows Modules Installer in services msc while it was running on my CPU.

  • MaracuchoEnParaguana

    Thanks. I have Windows 10 Home single Language and am on ethernet conection. I try to do the case 2, but cannot add permissions to my user account. It says access denied. What can I do to fix it?

    • Robert Clemente

      Don’t know if you found an answer yet, but have you tried booting in safe mode?

  • Double

    Great article, gonna try this. This ‘Windows Modules Installer Worker’ is the bane to my existence. Always causes my laptop fan to run loud and hot, has certainly shortened its lifespan quite a bit!