How to Fix Wwansvc.dll.mui Problems and Download Updates

Last Updated: 11/25/2023
[Time to Read: ~3-5 minutes]

The development of Microsoft® Windows® Operating System by Microsoft prompted the latest creation of wwansvc.dll.mui. It is also known as a WWAN Auto Config Service file (file extension MUI), which is classified as a type of Win32 DLL (Dynamic link library) file.

wwansvc.dll.mui was initially released with Windows 7 on 07/22/2009 for the Windows 7 Operating System. The latest file version for Windows 10 is v10.0.15063.0 (WinBuild.160101.0800) released on 07/29/2015. wwansvc.dll.mui is found in Windows 10, Windows 8.1, and Windows 8.

Below, you find comprehensive file information, instructions for simple MUI file troubleshooting, and list of free wwansvc.dll.mui downloads for each available file version.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	wwansvc.dll.mui
File Extension:	MUI file extension
Description:	WWAN Auto Config Service
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

View Other wwansvc.dll.mui Information

File Info	Description
File Size:	46 kB
File Modification Date/Time:	2017:03:18 05:04:14+00:00
File Inode Change Date/Time:	2017:11:05 07:07:54+00:00
File Type:	Win32 DLL
MIME Type:	application/octet-stream
Machine Type:	Intel 386 or later, and compatibles
Time Stamp:	0000:00:00 00:00:00
PE Type:	PE32
Linker Version:	14.10
Code Size:	0
Initialized Data Size:	46592
Uninitialized Data Size:	0
Entry Point:	0x0000
OS Version:	10.0
Image Version:	10.0
Subsystem Version:	6.0
Subsystem:	Windows GUI
File Version Number:	10.0.15063.0
Product Version Number:	10.0.15063.0
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Dynamic link library
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	WWAN Auto Config Service
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	WwanSvc.dll
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	WwanSvc.dll.mui
Product Name:	Microsoft® Windows® Operating System
Product Version:	10.0.15063.0

^✻ Portions of file data provided by Exiftool (Phil Harvey) distributed under the Perl Artistic License.

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What are wwansvc.dll.mui Error Messages?

Dynamic Link Library wwansvc.dll.mui Errors

wwansvc.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like wwansvc.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 wwansvc.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 wwansvc.dll.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common wwansvc.dll.mui errors include:

Access Violation at address - wwansvc.dll.mui.
wwansvc.dll.mui could not be found.
Cannot find C:\Windows\System32\en-US\wwansvc.dll.mui.
Cannot register wwansvc.dll.mui.
Cannot start Windows. A required component is missing: wwansvc.dll.mui. Please install Windows again.
Failed to load wwansvc.dll.mui.
The application has failed to start because wwansvc.dll.mui was not found.
The file wwansvc.dll.mui is missing or corrupt.
This application failed to start because wwansvc.dll.mui was not found. Re-installing the application may fix this problem.

Your wwansvc.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, wwansvc.dll.mui file corruption could be caused from a power outage when loading Windows, system crash while loading wwansvc.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 wwansvc.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 wwansvc.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):

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

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

Step 2: Run SFC (System File Checker) to restore the corrupt or missing wwansvc.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 wwansvc.dll.mui files (Windows XP, Vista, 7, 8, and 10):

Hit the Windows Start button
In the search box, type "cmd" but DO NOT PRESS "ENTER".
Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
You'll be prompted with a permission dialog box.
In the box, click "YES".
You should have a black screen with a blinking cursor.
In that black screen, type "sfc /scannow" and hit "ENTER".
SFC will begin scanning for wwansvc.dll.mui issues and any other system file problems.
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 wwansvc.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:

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

If Windows Update failed to resolve the wwansvc.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 wwansvc.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 wwansvc.dll.mui file version. We maintain a comprehensive database of 100% malware-free wwansvc.dll.mui files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

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

Windows 7: C:\Windows\System32\en-US\
Windows 8: C:\Windows\System32\en-US\
Windows 8.1: C:\Windows\System32\en-US\
Windows 10: C:\Windows\System32\en-US\

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

CAUTION : We strongly advise against downloading and copying wwansvc.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 wwansvc.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

File Name

Software Version

File Version

Architecture

wwansvc.dll.mui

10.0.15063.0

10.0.15063.0 (WinBuild.160101.0800)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 10
Software:	Microsoft® Windows® Operating System
Software Version:	10.0.15063.0
File Version:	10.0.15063.0 (WinBuild.160101.0800)
File Size:	47104
File Date:	03/18/2017
MD5 Checksum:	bf080e432f9145e905ce1a89b6634fc2
SHA1 Checksum:	aa0634afc6ecaec56a1065c2d6c6792e06f8fa20
SHA256 Checksum:	84a92647132c9add9a568fa540f2d07a85c92de4ab5820fdc5d4c02672e07427
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	10.0
Initialized Data Size:	46592
Linker Version:	14.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	03/18/2017

Windows 8.1

File Name

Software Version

File Version

Architecture

wwansvc.dll.mui

8.1.9600.16384

08.01.9600.16384 (winblue_rtm.130821-1623)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	8.1.9600.16384
File Version:	08.01.9600.16384 (winblue_rtm.130821-1623)
File Size:	34816
File Date:	11/21/2014
MD5 Checksum:	714027eda01326cfd546ae6ec8795a4e
SHA1 Checksum:	b2dccb8da9f7bce493e6b7daab20d081003dc485
SHA256 Checksum:	201cda6a753ff80fbc49cb7fb79abfb6f6a287482d7ff6d805b08fe46dda82de
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	34304
Linker Version:	11.0
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	6.0
File Modification Date/Time:	11/21/2014

Windows 8

File Name

Software Version

File Version

Architecture

wwansvc.dll.mui

8.1.9200.16384

08.01.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	8.1.9200.16384
File Version:	08.01.9200.16384 (win8_rtm.120725-1247)
File Size:	31232
File Date:	07/26/2012
MD5 Checksum:	c6aaa9c5357d11b2622ab092a32c79e6
SHA1 Checksum:	85fd8eb1d40be2d39036090f6f26641af807b2e8
SHA256 Checksum:	b9150ec0e7d7f79c0641f42682fd7e26864184eefe56ab530a8dab9ba780df7a
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.2
Initialized Data Size:	30720
Linker Version:	10.10
Machine Type:	Intel 386 or later, and compatibles
PE Type:	PE32
Subsystem:	Windows GUI
Subsystem Version:	5.1
File Modification Date/Time:	07/26/2012

Windows 7

File Name

Software Version

File Version

Architecture

wwansvc.dll.mui

8.1.2.0

08.01.02.00 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	8.1.2.0
File Version:	08.01.02.00 (win7_rtm.090713-1255)
File Size:	12800
File Date:	04/12/2011
MD5 Checksum:	fcc1a7b49271e157e1e8eeb3529204b8
SHA1 Checksum:	9be76ac0abaa3964d11ef6513c3d2b84cfc05202
SHA256 Checksum:	efd93636554ee5db6680c0337f4635d736e9d8d4f8a442693fe6adc02129f245
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.1
Initialized Data Size:	12288
Linker Version:	9.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	04/12/2011

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Files Related to wwansvc.dll.mui

MUI Files Related to wwansvc.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
rndismpx.sys.mui	Remote NDIS Miniport	Microsoft® Windows® Operating System (6.2.9200.16384)	3072	C:\Windows\Panther\UnattendGC\
Windows.Devices.Enumer...	Windows.Devices.Enumeration	Microsoft® Windows® Operating System (10.0.15063.0)	5120	C:\Windows\System32\LogFiles\WMI\RtBackup\
XInput1_4.dll.mui	Microsoft Common Controller API	Microsoft® Windows® Operating System (6.3.9600.16384)	2048	C:\Windows\System32\
pnppolicy.dll.mui	pnppolicy Task	Microsoft® Windows® Operating System (6.2.9200.16384)	2048	C:\Windows\System32\
CNBBR130.DLL.mui	Canon Inkjet Printer Driver	Canon Inkjet Printer Driver (1.00.2.82)	2048	C:\Users\Tester\AppData\Local\Packages\Microsof...

Other Files Related to wwansvc.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WWAN_profile_v1.xsd	XML Schema Definition	Windows 8	6201	C:\Windows\L2Schemas\
LAN_profile_v1.xsd	XML Schema Definition	Windows Vista	2241	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 10	3472	C:\Windows\L2Schemas\

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