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

Frustrated by the wiadefui.dll.mui error message? Well, you should want to know what this wiadefui.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 wiadefui.dll.mui and the methods to fix it.

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What's wiadefui.dll.mui File?

As its file extension denotes, wiadefui.dll.mui is a vital mui file and it's a component of the software Operativsystemet Microsoft® Windows® developed by Windows Software Developer. The latest version of wiadefui.dll.mui file is 6.0.6000.16386 and MD5 value is b62391866f25291f99c7692724a77656. This error can be seen on Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.

wiadefui.dll.mui file information:
File Name:   
   wiadefui.dll.mui (Free Scan)
File Description:   
   Standard brukergrensesnitt for WIA-skanner
Product Name:   
   Operativsystemet Microsoft® Windows®
Product Version:   
   Windows Software Developer
File md5:   
File type:   
   mui file
Security Level(0-5):   
OS Infected:   
   Download wiadefui.dll.mui Error Free Scan Tool

Why Do I Receive wiadefui.dll.mui Error?

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

Popular wiadefui.dll.mui Error Messages

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

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

Causes of wiadefui.dll.mui Error

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

  • The latest version of wiadefui.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.
  • wiadefui.dll.mui file is infected with malicious adware, Trojans, spyware and malware.
  • The associated entries of wiadefui.dll.mui are corrupted in the registry.
  • wiadefui.dll.mui file that is still used by other programs is uninstalled by another program.

How to Fix wiadefui.dll.mui Error?

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

Method 1: Uninstall and then reinstall Operativsystemet Microsoft® Windows® causing wiadefui.dll.mui error.

If wiadefui.dll.mui error pops up when you're using Operativsystemet Microsoft® Windows®, then it's worth trying to reinstall Operativsystemet Microsoft® Windows® 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 Operativsystemet Microsoft® Windows® 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 Operativsystemet Microsoft® Windows® 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 wiadefui.dll.mui error. Computer malware can make their way into the system, change system settings and corrupt system files. When this happens, Operativsystemet Microsoft® Windows® and Windows becomes more prone to wiadefui.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: Replace corrupted system files with System File Checker.

System File Checker is a utility integrated in Windows system to help users easily scan and replace corrupted system files which may include files related to wiadefui.dll.mui. If a "protected" file is modified or missing, this utility will restore it from a cached copy to ensure Windows work correctly.


a. Open an elevated command prompt.

Windows Vista and Windows 7

Click Start, click All Programs, Accessories, and then right click Command Prompt and click Run as administrator.

command prompt windows 7

Windows 8, Windows 8.1 and Windows 10

Open Win X menu by holding Windows and X keys, and then click Command Prompt (Admin).

windows8 win x menu

b. After confirming the UAC prompt, type sfc /scannow in the Command Prompt and hit Enter.

sfc windows 7

c. System File Checker is scanning your system and takes some time to complete the repair.

Method 4: 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 wiadefui.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 wiadefui.dll.mui error still persist?

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