How to Fix High CPU Usage by TiWorker.exe on Windows?

by Ugnius Kiguolis - -


Issue: How to Fix High CPU Usage by TiWorker.exe on Windows?

Hello all. I’ve found out that Tiworker.exe sometimes eats 30-40 % of my CPU. My laptop runs Windows 10 X64 Home Creators Update OS. I have recently installed all the updates and the system seems to be running normally, except those random occasions when Tiworker.exe CPU consumption gets too high. I scanned the system for malware, but it’s clean. What else could I do?

Solved Answer

First of all, it’s important to stress the fact that the original TiWorker.exe file should not be removed or modified in any way. It translates as Windows Modules Installer Worker, which is one of the core system’s components in Microsoft Windows OS. It’s responsible for scanning the system for outdated or missing modules and, respectively, installing the new ones or their updates.

Showing TiWorker.exe process on Task Manager

Very often Windows users complain about TiWorker.exe CPU usage, which sometimes can load 30%, 50% or even up to 100% CPU. Such behavior definitely diminishes system’s performance and may temporarily make the system unusable. If you are experiencing high CPU usage by TiWorker.exe constantly, you should definitely take corresponding actions to fix that.

The Instructions on How to Fix High CPU usage by TiWorker.exe

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If the unusual TiWorker.exe CPU usage occurred only once, we would recommend you to reboot the system and scan it with anti-malware utility. For that you may rely on Reimage. Legitimate Windows processes and files are an easy target of hackers. The names of such files are frequently misused for disguising malicious viruses. Thus, the culprit of high CPU usage by TiWorker.exe may be a virus. If this version did not approve, please follow these methods:

Install Windows Updates

Usually, TiWorker.exe CPU consumption gets high if the system is missing for crucial updates. Thus, please follow these steps:

  • Press Windows key + I and select Update & Security.
  • Click Check for Updates button and wait while the scan is being executed.
  • When the list of updates is returned, click Install updates.
  • Repeat the same procedure at least twice to ensure that all updates have been installed.
  • Finally, reboot the system.

Run system and maintenance troubleshooter

  • Press Windows key and type Troubleshooting.
  • Select Troubleshooting and click View all option.
  • Select System Maintenance and click Next.

Rename the SoftwareDistribution folder

  • Right-click Windows key and select Command Prompt (Admin).
  • Copy and paste the following commands one by one and hit Enter after each:
    net stop wuauserv
    net stop cryptSvc
    net stop bits
    net stop msiserver
  • Then copy and paste the ren C:\\Windows\\SoftwareDistribution SoftwareDistribution.old command and press Enter.
  • To finish up renaming the Software Distribution folder, type the ren C:\\Windows\\System32\\catroot2 catroot2.old command and press Enter.
  • Finally, copy and paste the following four commands into Command Prompt and press Enter after each of them:
    net start wuauserv
    net start cryptSvc
    net start bits
    net start msiserver
  • After that, reboot the system and install all available Windows Updates.

If none of the steps helped to fix High CPU usage by TiWorker.exe, try clean boot. This may help to find out if there is software conflict. Disable all non-Microsoft processes and then re-enable them one-by-one. Please let us know if you have managed to fix the problem.

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About the author

Ugnius Kiguolis
Ugnius Kiguolis - The problem solver

Ugnius Kiguolis is the founder and editor-in-chief of UGetFix. He is a professional security specialist and malware analyst who has been working in IT industry for over 20 years.

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