Windows Modules Installer Worker (also known as Windows Modules Installer, WMIW, or TiWorker.exe) is a core system process in Windows that checks for the latest Microsoft updates and installs them automatically. WMIW is a package installer that keeps core processes patched and current, and installs new features and security updates as they become available.
Before diving into fixing Windows Modules Installer issues, check out our guide to fixing 100% CPU usage in Windows. Also, consider physically cleaning your computer and fixing loud computer fans to improve speed and performance.
When Windows Modules Installer Worker updates automatically, it can suddenly commandeer your system and disrupt workflow. Setting Windows Installer Startup to manual allows you to get important updates at your convenience, or when you have the resources to spare. Windows will still notify you when there's an update available.
Windows Installer Startup should now be set to Manual. If TiWorker.exe and Windows Modules Installer are still causing high disk usage or high CPU usage, you can try ending the TiWorker.exe process through Task Manager.
The SoftwareDistribution folder temporarily stores files needed for Windows updates. Sometimes, the files stored in SoftwareDistribution conflict with new updates, causing Windows Module Installer Worker to have high CPU usage.
The SoftwareDistribution folder will now be removed, including old temporary Windows Update files that might have been causing Windows Module Installer Worker to result in high disk or high CPU usage.
You might have corrupt Windows update files, or other corrupt files, jamming up Windows Modules Installer Worker and causing it to overwork your CPU. Running the System File Checker can repair corrupt files automatically so the Windows Modules Installer can work the way it needs to.
Windows will now scan and replace system files. This process can take up to 15 minutes to complete, and it may require a restart. If the scan finds errors, you can also repair corrupted Windows system files with DISM.
Disabling Windows Update is not recommended, as it makes Microsoft unable to deliver the latest security patches and leaves you vulnerable to security exploits until you enable it again. This solution is best used temporarily, and only if you re-enable it as soon as possible.
One of the best ways to keep your PC running smoothly is to use cleanup software that updates your favorite programs automatically and runs 24/7 maintenance to keep your PC humming. AVG TuneUp does all that, plus it optimizes your CPU usage by putting memory-hogging programs to sleep and clears out junk files taking up too much disk space. Try it free today.
Our PC optimization suite automatically scans your computer to detect and get rid of unneeded apps and junk files, removing bloatware and other junk in a single click. And its patented Sleep Mode settings helps prevent apps from hogging CPU resources with unwanted background activity.
You can disable Windows Module Installer by ending TiWorker.exe in Task Manager, but it will start again after a reboot. We do not recommend disabling Windows Module Installer, because of the critical security patches that software updates deliver, but it is possible and could be warranted in extreme circumstances.
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Windows Modules Installer Worker high CPU usage is a common phenomenon for people who use Windows computers. Here is a real example that people encounter. Now, it is time to find its causes and responding solutions.
Windows Modules Installer Worker (TiWorker.exe), a part of Microsoft operating system, is a system background program. It is applied to Windows Update (automatically) and install some installation programs released by Microsoft, fix or replace system files.
In addition, it will maintain system regularly such as deleting temporary files, managing the system disk fragmentation, disk antivirus and other optimizations according to the set time. In general, it will take a long time to start up and run the computer after newly installing Windows 8 or when the system is just booting.
Windows Modules Installer Worker will constantly access the hard disk drive when the system installs some system modules, Windows Update is downloading and installing the updated software automatically and the update installation fails, which leads to 100 disk usage.
As you know, Windows Modules Installer Worker can cause some problems, even affect your normal usage. Here comes the need of fixing it. Several methods will be given in the following part. If you are urgent to fix the issue, please read the text carefully.
Since the Windows Modules Installer Worker gives rise to serious consequences to your computer, you may want to disable or close the Windows Modules Installer Worker as soon as possible. This method is also recommended by some websites, but this action will stop Windows installation and update normally.
More importantly, once you disable the Windows Modules Installer Worker, your computer is unable to update in time and the system is more vulnerable to the threats and virus. Hence, you had better not disable or close it.
Step 2: Find Windows Modules Installer Worker in the services list at first. Then right click it and choose Properties from the drop-down menu or just double click the Windows Modules Installer Worker service.
If you find that the error still exists after changing Windows Modules Installer Worker as manual, you can try to end the TiWorker.exe process through task manager. Windows modules installer worker end task may assist you in getting rid of the error.
Usually, Windows downloads and stores updates in the SoftwareDistribution folder. As the downloaded updates files are unable to install correctly, those corrupted Windows Update files lead to Windows Modules Installer Worker high CPU usage. Therefore, deleting the SoftwareDistribution folder is also a way to fix the error. This method is very easy to carry out.
Windows Update Troubleshooter is a useful tool to diagnose and troubleshoot problems related to Windows updates. Though it is unable to resolve all problems, it is still a popular tool to fix certain computer issues. Besides, it is rather easy to operate.
Step 3: Click Next to continue the process, then the program will start to detect problem on the computer. After the process finishes, you can check whether it resolves the Windows modules installer worker high CPU usage error.
System File Checker (SFC), a built-in Windows tool, is a useful program. It allows you to scan Windows system files and restore the corrupted files. Now, the guide to how to run SFC.exe to scan Windows system files and repair the lost or corrupted system files including DLL files will be given to you.
You are able to check whether the Windows Modules Installer Worker high CPU usage error is resolved when the scan finishes. Generally speaking, the issue can be addressed. If not, you can try other methods.
If all the above methods fail work, resetting you PC perhaps is worthwhile to try. Reset your computer to the original condition, then restart it. If you click the Remove Everything option during the reset process, you may lose your important data. So, making a backup is absolutely a wise idea before resetting the computer.
Choose the Keep my files option (to avoid data loss) to continue the resetting process. Additionally, you can click Remove everything if you have backed up your important data.
If you have any good idea about the Windows Modules Installer Worker high CPU usage error, you can share with us. We would appreciate it if you leave any suggestion or comment by sending an email to [email protected].
Windows 10 users have run into an issue with an item called Windows Modules Installer Worker consuming a large amount of CPU power on their device. It often occupies more than 50% of your CPU resources, and in severe cases even jumps up to 100%. This leads to a slow computer and presents various risks such as overheating or damaged hardware.
Windows Module installer worker is an important PC tool that helps the PC to check the windows updates automatically. It is an essential tool if you want Windows to check for the updates automatically on your PC or laptop because it automatically runs while checking for, and installing, any Windows Updates.
Essentially, Windows Modules Installer Worker (or TiWorker.exe) is a Windows Update Service. It looks for newly available Windows system updates and installs them on your computer. Whenever your system automatically looks for updates or you manually start a search for updates, this process will be running.
The high CPU usage often occurs due to the constant search of updates by the Windows Modules Installer Worker. In Windows, the OS plays a preeminent role. Usually, updates and upgrades are set to be installed at night - when the PC is inactive. But in some of the cases, when the system is turned off at night, the only solution is for the updates to download and install the updates at day time or when your PC is active.
In some rare cases, Windows modules installer worker high CPU usage occurs when the RAM is loaded or because of outdated PC drivers. This can happen when you manually or automatically search for the updates of Windows 10 or install them. Most of the time, it also occurs then when servicing a laptop or PC.