What Is Windows Modules Installer Worker?

Windows Modules Installer Worker (also known as WMIW or TiWorker.exe) is an essential cog in the machinery of your operating system. Its job is to automatically check for any Windows and Microsoft updates and install them to make your PC run seamlessly at all times. Furthermore, it backs up your old data and ensures that everything is up to date on your PC. Naturally, all these tasks require a lot of resources and processing power in the form of RAM and disk space. Therefore, sometimes you may see a decline in performance while WMIW is running in the background. You can also notice a spike in CPU usage every time you open the task manager in Windows, which is the reason why your PC heats up and slows down. This is only a minor inconvenience you’ll have to face for an up-to-date operating system. Once the installation is complete, your PC should calm down and return to its normal state. However, if you notice that your CPU and disk usage have been high for a few hours, it may cause problems such as abrupt shutdowns, and you need to take action.

How to Fix Issues With Windows Modules Installer Worker

1. Restart the Windows Update Service

Sometimes the Windows modules installer can develop a glitch, causing the CPU to supply it with unnecessary high power. Often, this issue can be fixed by just quickly restarting the Windows Update service.

2. Run Windows Update Troubleshooter

Instead of manually changing any commands or features, we can utilize the Windows troubleshooting tool to detect and fix the issue. Here’s how to do it.

Windows 10

Windows 11

3. Change Internet Settings

You have the privilege to change your internet settings to a metered connection. This will prevent Windows from unnecessarily searching for updates and installing them.

Case #1: You’re Using a Wi-Fi Connection on Windows 10

Case #2: You’re Using a Wi-Fi Connection on Windows 11

Case #3: You’re on an Ethernet Connection

4. Run an SFC Scan

By default, the purpose of System File Checker (SFC) is to scan Windows and restore your files if some Windows functions aren’t working or if Windows crashes. However, you can run this tool manually to resolve the issue with WMIW.

5. Disable the Windows Update Service

Windows modules installer worker is a core part of the Windows ecosystem that allows you to run your PC smoothly. It keeps your Windows and other Microsoft apps up to date. Thus, disabling it is not a recommended method. It may negatively affect the performance of Windows applications in the future. You may also miss out on some important security updates or bug fixes. However, if have no choice but to disable the process as a last resort, follow these steps:

Is the High CPU Usage Temporary?

It is normal for your PC to get overworked while WMIW is running in the background. However, if you experience increased disk and CPU usage at all times, you may need to optimize your PC with the help of specialized tools like AVG TuneUpfor PC. Image credit: Unsplash