Tiworker.exe causing high CPU [Fixed for good]

Ivan Jenic
by Ivan Jenic
Troubleshooting Expert
Last update:
Affiliate Disclosure

  • Many PC users have noticed that the file tiworker exe is causing high CPU usage in Windows 10.
  • Some people will mistakenly consider tiworker.exe a virus, but this is an important Windows file.
  • We prepared a list of solutions that solve the error tiworker exe causing high CPU after update.
  • Read this article and make your operating system function properly by fixing tiworker file error.
Windows 10 error: Tiworker.exe causing high CPU
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High disk usage is actually quite a common problem among Windows users. Oftentimes, this issue is caused by specific apps and programs, such as Tiworker.exe.

Tiworker.exe is an app that is directly related to the Windows Updates manager and will run in the background once you boot up your PC.

Basically, Tiworker.exe is an app that appeared alongside the Windows 10 operating system. Seeing that it is a Windows system feature, you cannot disable it.

More and more Windows 10 users are having trouble with this Tiworker.exe because it seems to take a lot of CPU usage, sometimes taking up to 50 %.

This will prevent the user from playing a game that requires a bit more hardware specs for example or watching a movie.

For this reason, we will explain in detail how you can fix the high CPU usage you have from Tiworker.exe in the tutorial below.

How to fix tiworker.exe high disk usage on Windows 10?

  1. Run System Maintenance Troubleshooter
  2. Use professional software
  3. Check for updates
  4. Perform a Clean boot
  5. Rename SoftwareDistribution directory
  6. Perform SFC and DISM scan
  7. Exclude TiWorker.exe from Windows Defender
  8. Delete the Updates directory
  9. Delete HP software
  10. Reinstall Windows

1. Run System Maintenance Troubleshooter

  1. Press Windows key + S button, and type in Troubleshooting.
  2. Click on the Troubleshooting icon.
  3.  Click on View All.
    System Maintenance Troubleshooter
  4. Click on System Maintenance.
    System Maintenance Troubleshooter
  5. Click on Next and follow the steps presented on the screen.
    System Maintenance Troubleshooter

2. Use professional software

When you encounter the issue with tiworker.exe high disk usage on Windows 10, the solution is very simple. Use professional software and make your computer healthy again.

We recommend you a complete system solution based on a powerful technology. This software will secure and repair your PC bringing it into an optimized state.

Use this complete solution to remove malware threats from your computer, and restore its maximum performance. This software will also replace the damaged files from your operating system.

Windows Update is meant to improve the overall performance of your operating system, integrate new features, and even upgrade the existing ones. However, there are times when certain errors may occur out of the blue. Thankfully, if you happen to run into such issues, there is a specialized Windows repair software that can help you solve them in no time, and it is called Restoro. This is how you can fix registry errors using Restoro:
  1. Download and install Restoro.
  2. Launch the application.
  3. Wait for the application to find any system stability issues and possible malware infections.
  4. Press Start Repair.
  5. Restart your PC for all the changes to take effect.
After the process is completed your computer should work perfectly fine and you will no longer have to worry about Windows Update errors of any kind. Get Restoro Disclaimer: This program needs to be upgraded from the free version in order to perform some specific actions.

3. Check for updates

  1. Press Windows key + X and select Control Panel.
  2. Click on Windows Updates in the Control Panel.
  3. Select Large icons from the View menu.
  4. Click on Check for updates.
  5. After this is finished restart your Windows 10 PC, and see if you still have this issue.

4. Perform a Clean boot

  1. Press Windows Key + R, enter msconfig, and press Enter.
    Clean boot
  2. Go to Services, check Hide all Microsoft services, and click on Disable all.
    Clean boot
  3. Go to the Startup tab and click on the Open Task Manager.
    Clean boot
  4. Right-click the first application on the list, choose Disable from the menu, and repeat this step for all startup applications on the list.
    Clean boot
  5. Go to System Configuration, click Apply and OK, and restart your PC.
    Clean boot

After restarting your PC check if the issue still appears. If not, you need to enable all disabled applications and services until you find the one that is causing this problem.

Keep in mind that you need to restart your PC after enabling each service or application.

You will need to perform a clean boot to the Windows 10 system to see if you have some apps interfering with the system and causing Tiworker.exe to eat up your CPU memory as it does.

If after the clean boot in Windows you find an app interfering with the system you can either try to uninstall it or try to make an update to the app that’s causing your issue.

5. Rename SoftwareDistribution directory

  1. Press Windows key + R, enter services.msc, and click OK.
    access Services
  2. Locate Windows Update service on the list and double click it to open its Properties.
    Windows Update service
  3. Set Startup type to Manual, click Stop, click Apply and OK to save changes.
    Windows Update service properties stop
  4. Go to C:Windows, locate SoftwareDistribution and change its name to SoftwareDistribution.old.
    Rename software distribution folder
  5. Return to Services and double click Windows Update.
  6. Set Startup type to Automatic, click Start, and then click on Apply and OK.
    Windows Update service properties start

After doing that, check for updates manually and your issue should be resolved.

According to users, sometimes your SoftwareDistribution directory can become corrupted and that can cause high disk usage by TiWorker.exe.

To fix the problem, you need to follow these steps shown above.

6. Perform SFC and DISM scan

  1. Press Windows key + X to open the Win + X menu, and choose Command Prompt (Admin).
  2. Type in sfc/scannow and press Enter to run it.Fix error Tiworker.exe causing high CPU
  3. The SFC scan will now start.
  4. Wait for this process to run and complete.

To fix high disk usage by TiWorker.exe, you might have to perform an SFC scan. Your files can become corrupted causing the problem to appear. Fortunately, you can fix the issue by using this solution.

Once the SFC scan is finished, check if the issue still appears. If not, you might have to perform a DISM scan instead. To do that, just open Command Prompt as administrator and enter

 DISM /Online /Cleanup-Image /RestoreHealth

Run a System Scan to discover potential errors

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Run a PC Scan with Restoro Repair Tool to find errors causing security problems and slowdowns. After the scan is complete, the repair process will replace damaged files with fresh Windows files and components.

DISM scan will now start and try to repair your system. Keep in mind that this process can take 20 minutes or more, so be sure not to interrupt it.

After the DISM scan is finished, check if the problem is resolved. If you were unable to run an SFC scan before, be sure to repeat it after completing the DISM scan.

After running both DISM and SFC scan, check if the issue is resolved.

7. Exclude TiWorker.exe from Windows Defender

  1. Press Ctrl + Shift + Esc to open Task Manager.
  2. Locate TiWorker.exe or System, right-click it and choose Open File location.
    Task Manager Tiworker.exe location on the drive
  3. Copy the location of this directory since you’ll need it for future steps.
  4. Press Windows Key + S to enter defender, and choose Windows Defender Security Center.
    Tiworker.exe causing high CPU
  5. Go to Virus & threat protection.
    virus & threat protection windows defender
  6. Now click on Virus & threat protection settings.
    virus & threat protections settings
  7. Scroll down to the Exclusion section and click on Add or remove exclusions.
    add windows defender exclusions
  8. Click on Add an exclusion and select Folder from the list.
    add windows defender exclusion
  9. Now enter the location of the directory from Step 3 and save changes.

According to users, high disk usage by TiWorker.exe can be caused by Windows Defender.

Users reported that Windows Defender keeps scanning TiWorker.exe causing this problem to appear. To fix the problem, you need to exclude this file.

After doing that, Windows Defender won’t scan TiWorker.exe and its directory and your issue should be resolved.

8. Delete the Updates directory

  1. Fix the tiworker exe causing high CPU usage in Windows 10 errorNavigate to C:Windows/Temp directory.
  2. Locate the Updates directory and remove it.

According to users, sometimes high disk usage by TiWorker.exe can be caused by your temporary files.

Users reported that the Updates directory was causing this issue on their PC, but after removing it, the issue was resolved.

After doing that, the problems with disk usage should be resolved.

9. Delete HP software

Many users reported that high disk usage by TiWorker.exe can be caused by HP software.

According to users, software such as HP Support Assistant can cause this problem to appear.

To fix the issue, users are recommending to remove all HP software from your PC and check if that solves the problem.

10. Reinstall Windows

Finally, the last resort is a clean reinstall. Windows native services, like the infamous svchost.exe with CPU activity, tend to bring quite a headache to users.

And, sometimes, even though you’ve covered every possible option, it’ll still use system resources in abhorrently large volumes.

Of course, there’s always If that happens, you should consider starting from scratch and reinstalling Windows.

Back up your data from the system partition and get to work. We have an in-depth explanation on how to reinstall Windows 10. You will notice it is a simple step-by-step process.

There you have it, 9 methods on how to fix your Tiworker.exe, get your CPU usage back to normal operating standards, and continue playing your games without any interference from outside apps.

Let us know if this guide helped you solve your issue by hitting the comments section below.

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Frequently Asked Questions

  • The Windows Modules Installer Worker is part of the Windows Update Service. It’s actually this process that is responsible for checking and installing your Windows updates and it will run in the background once you boot up your PC.

  • You will find the app itself (the Windows Modules Installer Worker) on the Processes tab of your Task Manager. The corresponding file is called tiworker.exe and you will find it in the Details tab.

  • You can end or disable tiworker.exe, but it is not recommended you to do since the Windows Modules Installer is a native Microsoft process that is specifically designed to handle the proper installation of Windows updates.

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The guys are right, old problem reinstalled by MS. If you run DISK to install a new Windows, turn off Tiworker during the update and install. Tiworker didn’t reinstall. So far it is working will edit if a problem results.


this worked for me (all or one of this steps):

install hyperV from “add windows features” reboot and do updates

do a maintenance from security center

turn off windows firewall (if you use another firewall together)

now the “worker has stopped working!” (for me)

I use a prog called process lasso to terminate this kinda crap all the time. Simply right click and “terminate always”, never had issues again.

Microsoft has existed for 30 years – and they still dont know how to limit operating system resources to enable users to use the pc. No wonder that users seek alternate operating systems.

Huh I guess one of the new updates caused this because I see that you commented 4 hours ago, and I just noticed this too!

Im currently operating on genuine windows 8.1 and I want to say that this is just ridiculous. Windows is getting worse with every single update. When its fresh and new it runs like a rocket but after 4 months of daily work my laptop is unusable.

I have been on Linux since before Win8 was released. I just got a new laptop that of course, ships with Windows 8 and I had no other options except to swallow Microsoft’s nut and take Windows 8 whether I like it or not. A little over 1 day in to using my new rig I have already experienced the following:

1. I changed my account name, and apparently ‘account’ and ‘user’ are different things according to Microsoft? The result was that I was temporarily unable to access any Computer Management resources because the names no longer matched up.

2. I had to run explorer.exe with elevated privileges just to get Python 2.7 to install. Let me repeat, I had to force close, then run the ENTIRE GUI ITSELF with elevated privileges just to get an installer package to install correctly, because there was no apparent way to do so for just that package.

3. About once every hour, TiWorker.exe hits the CPU with an enormous workload. The fans kick on full blast, CPU usage spikes to about 75% and levels off at about 50% for the next few minutes. My notebook has an i7-8710MQ running at 3.4GHz, this is not a lightweight CPU. Yet Microsoft Windows 8 still manages to hit it so hard that the fans kick on loud enough to hear from across the room, it actually starts hanging on simple tasks like switching between open windows. I have had this notebook for barely more than 24 hours, so there is absolutely nothing I have done on my end to cause it to behave this way.

Windows is a crock of shit. As an aspiring developer I have to say I’m also torn right now between career paths. I have mostly been developing/training on *nix based systems, but I have a friend who develops on the Microsoft stack, makes like 160k and says I should start learning .NET because that’s where jobs and money’s at. I like money, but I just feel like I’m allergic to Microsoft’s bullshit and I can’t work on the Microsoft platform for more than an hour or so before something comes up that makes me want to head butt the fucking screen. Uggghhh…can’t wait to get Ubuntu running on this thing and not have to deal with this shit….

The problem is in order to be able to retain compatability they still have to keep ancient code in their OS’.
If they could disregard compatability and “start over” it would be another story all together.