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

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

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What's whhelper.dll.mui File?

As its file extension denotes, whhelper.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 whhelper.dll.mui file is 6.0.6000.16386 and MD5 value is 313c6ac3f77b403c0d752e64e63bebea. This error can be seen on Windows XP, Windows Vista, Windows 7, Windows 8 and Windows 10.

whhelper.dll.mui file information:
File Name:   
   whhelper.dll.mui (Free Scan)
File Description:   
   Nettskallhjelpe-DLL for winHTTP
Product Name:   
   Operativsystemet Microsoft® Windows®
Product Version:   
   Windows Software Developer
File md5:   
File type:   
   mui file
Security Level(0-5):   
OS Infected:   
   Download whhelper.dll.mui Error Free Scan Tool

Why Do I Receive whhelper.dll.mui Error?

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

Popular whhelper.dll.mui Error Messages

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

You may receive whhelper.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 whhelper.dll.mui Error

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

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

How to Fix whhelper.dll.mui Error?

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

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

If whhelper.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 whhelper.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 whhelper.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: Install Windows updates.

Computers and computer software can quickly become out-dated, so Microsoft keeps releasing updates in order to improve their security and fix technical glitches. Your whhelper.dll.mui error may be fixed after you install all latest Windows updates.


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

computer properties

b. In the left pane, click Windows Update.

windows update

c. In the Windows Update window, click Check for updates.

check for updates windows 7

d. If any update is found, click Install updates to install.

install updates windows 7

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 whhelper.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 whhelper.dll.mui error still persist?

Feel free to contact us for more assistance.

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