How to Fix wmiutils.dll.mui Error? Is it safe?

Frustrated by the wmiutils.dll.mui error message? Well, you should want to know what this wmiutils.dll.mui file is, what causes this error and the most important thing is how to fix this error. In this page, you will find all answers to your questions about this wmiutils.dll.mui and the methods to fix it.

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What's wmiutils.dll.mui File?

As its file extension denotes, wmiutils.dll.mui is a vital mui file and it's a component of the software unknow developed by Windows Software Developer. The latest version of wmiutils.dll.mui file is 5.1.2600.0 and MD5 value is fbfb5300295dd160c261cd0a531ebbbd. This error can be seen on Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.

wmiutils.dll.mui file information:
File Name:   
   wmiutils.dll.mui (Free Scan)
File Description:   
Product Version:   
   Windows Software Developer
File md5:   
File type:   
   mui file
Security Level(0-5):   
OS Infected:   
   Download wmiutils.dll.mui Error Free Scan Tool

Why Do I Receive wmiutils.dll.mui Error?

unknow and the Windows will generate wmiutils.dll.mui error when wmiutils.dll.mui file cannot be used due to the removal or corruption of wmiutils.dll.mui file. Virus infection is also a potential cause of wmiutils.dll.mui error.

Popular wmiutils.dll.mui Error Messages

  • The application has failed to start because wmiutils.dll.mui was not found. Re-installing the application may fix this problem.
  • The program can't start because wmiutils.dll.mui is missing from your computer. Try reinstalling the program to fix this problem.
  • wmiutils.dll.mui failed. The specified module could not be found.
  • File not found: wmiutils.dll.mui.
  • Failed to load library 'wmiutils.dll.mui'.
  • Access violation in module 'wmiutils.dll.mui'.
  • Component 'wmiutils.dll.mui' or one of its dependencies not correctly registered a file is missing or invalid.

You may receive wmiutils.dll.mui error when you run or close unknow, start or shut down the computer, or use specific function of unknow. The time you encounter the error is very important to troubleshoot the problem.

Causes of wmiutils.dll.mui Error

wmiutils.dll.mui error can be caused by plenty of reasons. The following are the most common causes of wmiutils.dll.mui error.

  • The latest version of wmiutils.dll.mui file is overwritten by a previous version installed by another newly-installed program.
  • There is a malfunctioning or faulty hardware in your computer.
  • wmiutils.dll.mui file is infected with malicious adware, Trojans, spyware and malware.
  • The associated entries of wmiutils.dll.mui are corrupted in the registry.
  • wmiutils.dll.mui file that is still used by other programs is uninstalled by another program.

How to Fix wmiutils.dll.mui Error?

If you're confident of fixing this problem yourself, we have listed several solutions to troubleshoot your wmiutils.dll.mui problem.

Method 1: Uninstall and then reinstall unknow causing wmiutils.dll.mui error.

If wmiutils.dll.mui error pops up when you're using unknow, then it's worth trying to reinstall unknow or the program from Windows Software Developer.


Windows Vista, Windows 7 and Windows 10:

a. Click Start and click Control Panel.

start control panel windows 7

b. Click Uninstall a program.

win7 control panel programs and features

c. Look for unknow or the program from Windows Software Developer, right click on it and click Uninstall to uninstall it from your system.

uninstall software

d. After the uninstallation, restart your computer and then reinstall the software with your disc or the installer from the official website.

Windows 8 and 8.1:

a. Hover the cursor to the top right corner of the screen to bring up Charms bar and then click Search.

windows 8 charms bar search

b. Click Settings, type uninstall, and click Uninstall a program in the search results.

uninstall windows8

c. Look for unknow or the program from Windows Software Developer, right click on it and click Uninstall to uninstall it from your system.

uninstall software windows8

d. After the uninstallation, restart your computer and then reinstall the software with your disc or the installer from the official website.

Method 2: Run a virus scan.

Malware infection is one of the most popular cause of various computer problems like wmiutils.dll.mui error. Computer malware can make their way into the system, change system settings and corrupt system files. When this happens, unknow and Windows becomes more prone to wmiutils.dll.mui error and even malfunction.


a. Restart your system into Safe Mode with Networking.

b. Open your antivirus or antispyware program. (You can also use this recommended malware detect tool)

c. Run a full scan for your system.

d. After the scan completes, either quarantine or remove any detected malware.

e. Restart your system.

Method 3: Do a System Restore.

System Restore is another useful utility integrated in Windows to help users revert their system files, installed applications, Windows registry and settings to that of a previous point of time. It's often used to fix problems like wmiutils.dll.mui error caused by unexpected change made by a new program installation or abnormal Windows behaviors.

Note: Please do a full backup before performing System Store, otherwise, you may risk losing your files and data.


a. Go to the desktop of your system, right click on Computer and click Properties.

computer properties

b. In the left pane, click System protection.

system protection

c. In the System Properties window, click System Restore.

system restore

d. In the System Restore window, click Next.

system restore next

e. From the list of restore points, select one you wish to restore from. Click Next.

select restore point

f. If you do not want to change your decision, then click Finish.

confirm system restore

g. Click Yes.

yes restore

Method 4: Update device drivers.

Many issues, conflicts and vulnerabilities of device drivers may result in unexpected problems like wmiutils.dll.mui error. Drivers are software that enables Windows system to talk and give instructions to hardware devices. Though drivers work correctly one day, they may have problems the next day. Keeping your drivers updated is a way to keep your system error-free.

Method 5: Repair corrupted Windows registry.

As the most important part of Windows operating system, Windows registry is a place that stores all information and configurations of software and hardware. A problematic registry is one of the most common causes of computer errors like wmiutils.dll.mui error. Software installation, uninstallation, malware infection can make changes to the registry. Over time, more and more invalid entries are left and accumulated in the registry and then lead to various errors and problems. The registry needs regular maintenance to keep it tidy and stable. Manual editing the registry is not practical for people with no computer expertise, it's recommended that you use a registry cleaner to do this job.


Note: It requires certain computer knowledge to perform the above solutions. If you're not comfortable with this process, it's recommended that you download and run this automatic error fix utility to fix your PC problems automatically:

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Does wmiutils.dll.mui error still persist?

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