Microsoft Windows MUI WinSetupUI.dll.mui

How to Fix Issues with WinSetupUI.dll.mui (Free Download)

Last Updated: 12/03/2023
[Average Article Time to Read: 4.7 minutes]

MUI files such as WinSetupUI.dll.mui are categorized as Win32 DLL (Dynamic link library) files. As a Windows Setup UI file, it was created for use in Microsoft® Windows® Operating System by Microsoft.

The first release of WinSetupUI.dll.mui for the Windows 10 platform was on 07/29/2015 for Windows 10. This file version is latest update offered from Microsoft, according to our records.

In this short article, you will discover detailed file information, steps for troubleshooting MUI file problems with WinSetupUI.dll.mui, and list of free downloads for every version that exists in our comprehensive file directory.

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File Overview


General Information ✻
File Name: WinSetupUI.dll.mui
File Extension: MUI file extension
Description: Windows Setup UI
Object File Type: Dynamic link library
File Operating System: Windows NT 32-bit
MIME Type: application/octet-stream
User Popularity Rating:
 
Developer and Software Information
Software Developer: Microsoft Corporation
Software Program: Microsoft® Windows® Operating System
Legal Copyright: © Microsoft Corporation. All rights reserved.
File Details
Character Set: Unicode
Language Code: English (U.S.)
File Flags: (none)
File Flags Mask: 0x003f
Entry Point: 0x0000
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What are WinSetupUI.dll.mui Error Messages?


Dynamic Link Library WinSetupUI.dll.mui Errors

WinSetupUI.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like WinSetupUI.dll.mui, are essentially a "guide book" that stores information and instructions for executable (EXE) files - like sapisvr.exe - to follow. These files were created so that multiple programs (eg. Windows) could share the same WinSetupUI.dll.mui file, saving valuable memory allocation, therefore making your computer run more efficiently.

Unfortunately, what makes DLL files so convenient and efficient, also makes them extremely vulnerable to problems. If something happens to a shared MUI file, either it goes missing or gets corrupted in some way, it can generate a "runtime" error message. Runtime is pretty self-explanatory; it means that these errors are triggered when WinSetupUI.dll.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common WinSetupUI.dll.mui errors include:

Your WinSetupUI.dll.mui file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows), or deleted by a malware infection. Furthermore, WinSetupUI.dll.mui file corruption could be caused from a power outage when loading Windows, system crash while loading WinSetupUI.dll.mui, bad sectors on your storage media (usually your primary hard drive), or quite commonly, a malware infection. Thus, it's critical to make sure your anti-virus is kept up-to-date and scanning regularly.

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How to Fix WinSetupUI.dll.mui Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your WinSetupUI.dll.mui issue. These troubleshooting steps are listed in the recommended order of execution.


Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the WinSetupUI.dll.mui error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing WinSetupUI.dll.mui file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt WinSetupUI.dll.mui files (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "cmd" but DO NOT PRESS "ENTER".
  3. Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
  4. You'll be prompted with a permission dialog box.
  5. In the box, click "YES".
  6. You should have a black screen with a blinking cursor.
  7. In that black screen, type "sfc /scannow" and hit "ENTER".
  8. SFC will begin scanning for WinSetupUI.dll.mui issues and any other system file problems.
  9. Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many WinSetupUI.dll.mui error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the WinSetupUI.dll.mui error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

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If Those Steps Fail: Download and Replace Your WinSetupUI.dll.mui File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate WinSetupUI.dll.mui file version. We maintain a comprehensive database of 100% malware-free WinSetupUI.dll.mui files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download WinSetupUI.dll.mui Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy the file into the appropriate directory for your Windows version:

    4. Windows 10: C:\Windows\System32\en-US\
  4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.


GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve WinSetupUI.dll.mui problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

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Download WinSetupUI.dll.mui Files (Malware-Tested 100% Clean)


CAUTION : We strongly advise against downloading and copying WinSetupUI.dll.mui to your appropriate Windows system directory. Microsoft typically does not release Windows MUI files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing WinSetupUI.dll.mui and all other MUI files for Windows. An incorrectly installed MUI file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
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Files Related to WinSetupUI.dll.mui


MUI Files Related to WinSetupUI.dll.mui

File Name Description Software Program (Version) File Size (bytes) File Location
RMActivate_ssp.exe.mui Windows Rights Management Services Activation for Server Security Processor Microsoft® Windows® Operating System (6.3.9600.16384) 2048 C:\Windows\Panther\UnattendGC\
wer.dll.mui Myriad User Instrument Windows Vista 15872 C:\Windows\Logs\DPX\
ScDeviceEnum.dll.mui Smart Card Device Enumeration Service Microsoft® Windows® Operating System (10.0.15063.0) 4096 C:\Windows\System32\en-US\
msiexec.exe.mui Myriad User Instrument Windows 7 2048 C:\Windows\Panther\UnattendGC\
dskquoui.dll.mui Windows Shell Disk Quota UI DLL Microsoft® Windows® Operating System (6.0.6000.16386) 23552 C:\Windows\System32\Sysprep\Panther\

Other Files Related to WinSetupUI.dll.mui

File Name Description Software Program (Version) File Size (bytes) File Location
OneX_v1.xsd XML Schema Definition Windows 8.1 5957 C:\Windows\L2Schemas\
WLAN_policy_v1.xsd XML Schema Definition Windows Vista 6446 C:\Windows\L2Schemas\
LAN_profile_v1.xsd XML Schema Definition Windows XP 2241 C:\Windows\L2Schemas\
LAN_profile_v1.xsd XML Schema Definition Windows 10 2241 C:\Windows\L2Schemas\
LAN_policy_v1.xsd XML Schema Definition Windows XP 2687 C:\Windows\L2Schemas\


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