Repair KMSVC.DLL.MUI Issues (How to Download and Fix)

Last Updated: 11/26/2023
[Time to Read: ~3-5 minutes]

MUI files such as KMSVC.DLL.MUI are categorized as Win32 DLL (Dynamic link library) files. As a Key Management Service file, it was created for use in Microsoft® Windows® Operating System by Microsoft.

The first version of KMSVC.DLL.MUI was released for the Windows Vista Operating System on 11/08/2006 inside Windows Vista. The most recent release for Windows 8.1 launched on 10/18/2013 [version 6.3.9600.16384 (winblue_rtm.130821-1623) release]. KMSVC.DLL.MUI is included with Windows 8.1, Windows 8, and Windows 7.

In this article, you will find detailed KMSVC.DLL.MUI information, a MUI file troubleshooting guide, and a list of versions that are available for free download.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	KMSVC.DLL.MUI
File Extension:	MUI file extension
Description:	Key Management 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 KMSVC.DLL.MUI Information

File Info	Description
File Size:	3.0 kB
File Modification Date/Time:	2014:11:21 06:16:36+00:00
File Inode Change Date/Time:	2017:11:05 07:04:30+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:	11.0
Code Size:	0
Initialized Data Size:	2560
Uninitialized Data Size:	0
Entry Point:	0x0000
OS Version:	6.3
Image Version:	6.3
Subsystem Version:	6.0
Subsystem:	Windows GUI
File Version Number:	6.3.9600.16384
Product Version Number:	6.3.9600.16384
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:	Key Management Service
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
Internal Name:	KmSvc.DLL
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	KmSvc.DLL.MUI
Product Name:	Microsoft® Windows® Operating System
Product Version:	6.3.9600.16384

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

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What are KMSVC.DLL.MUI Error Messages?

Dynamic Link Library KMSVC.DLL.MUI Errors

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

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

Your KMSVC.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, KMSVC.DLL.MUI file corruption could be caused from a power outage when loading Windows, system crash while loading KMSVC.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 KMSVC.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 KMSVC.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 KMSVC.DLL.MUI error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing KMSVC.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 KMSVC.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 KMSVC.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 KMSVC.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 KMSVC.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 KMSVC.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 KMSVC.DLL.MUI file version. We maintain a comprehensive database of 100% malware-free KMSVC.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 KMSVC.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 Vista: C:\Windows\System32\en-US\
Windows 7: C:\Windows\System32\en-US\
Windows 8: C:\Windows\System32\en-US\
Windows 8.1: 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 8.1.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve KMSVC.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 KMSVC.DLL.MUI Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying KMSVC.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 KMSVC.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 Vista

File Name

Software Version

File Version

Architecture

KMSVC.DLL.MUI

6.0.6000.16386

6.0.6000.16386 (vista_rtm.061101-2205)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6000.16386
File Version:	6.0.6000.16386 (vista_rtm.061101-2205)
File Size:	2560
File Date:	11/02/2006
MD5 Checksum:	2002a8b11849b561ab0b6ebe99a70a17
SHA1 Checksum:	70520a3a3d10bf442f277cbf96ce32e8ab0065a9
SHA256 Checksum:	5664c855fbcbb04778dec0896df73666e0788c17a0980c6bfa8180ea6b1db327
CRC32:
File Directory Location:	C:\Windows\System32\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.0
Initialized Data Size:	2048
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	11/02/2006

Windows 8.1

File Name

Software Version

File Version

Architecture

KMSVC.DLL.MUI

6.3.9600.16384

6.3.9600.16384 (winblue_rtm.130821-1623)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8.1
Software:	Microsoft® Windows® Operating System
Software Version:	6.3.9600.16384
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
File Size:	3072
File Date:	11/21/2014
MD5 Checksum:	aa62ffa2a6c8e5d0bf4f9d865f493d3d
SHA1 Checksum:	f3ad9d273f220979e8ba2d049534f0e2d2a91a63
SHA256 Checksum:	d51863d37b57ec8a8cf08f2f4016393d2623993a7553d242459658abf677b6b3
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:	2560
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

KMSVC.DLL.MUI

6.2.9200.16384

6.2.9200.16384 (win8_rtm.120725-1247)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 8
Software:	Microsoft® Windows® Operating System
Software Version:	6.2.9200.16384
File Version:	6.2.9200.16384 (win8_rtm.120725-1247)
File Size:	3072
File Date:	07/26/2012
MD5 Checksum:	1ff44dc9c83bdca6480ebfb86991166c
SHA1 Checksum:	b54a2649b9e3bb8ce0e6ebafc7b2ac4efd38cbb6
SHA256 Checksum:	27b082e07daebcdcc3c508e31f466d6c1d65a7f4af289a6cb1ecac0d49731254
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:	2560
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

KMSVC.DLL.MUI

6.1.7600.16385

6.1.7600.16385 (win7_rtm.090713-1255)

64-bit (x64)

Expand for Detailed File Information +

OS Version:	Windows 7
Software:	Microsoft® Windows® Operating System
Software Version:	6.1.7600.16385
File Version:	6.1.7600.16385 (win7_rtm.090713-1255)
File Size:	2560
File Date:	04/12/2011
MD5 Checksum:	73a2b5ad029c5654b636dd46b16d9e79
SHA1 Checksum:	6e31b4a95f045c0550c0dfc26ff30be7ee5fb561
SHA256 Checksum:	e1b8a0e6842b0ee93179937ce50cb4d0a9ff2b5c4f3ef23b91b859701d7bc8e9
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:	2048
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 KMSVC.DLL.MUI

MUI Files Related to KMSVC.DLL.MUI

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WcnNetsh.dll.mui	WCN Netsh Helper DLL	Microsoft® Windows® Operating System (6.2.9200.16384)	9728	C:\Windows\Panther\NewOs\Panther\
icardres.dll.mui	Windows CardSpace	Microsoft® .NET Framework (3.0.4506.4926)	592200	C:\Windows\Panther\UnattendGC\
fms.dll.mui	Myriad User Instrument	Windows 8.1	15360	C:\$WINDOWS.~BT\Sources\Boot\PXE\qps-ploc\
tabcal.exe.mui	Digitiser Calibration Tool	Microsoft® Windows® Operating System (6.3.9600.16384)	4608	C:\Windows\Panther\UnattendGC\
rasmm.dll.mui	Myriad User Instrument	Windows 7	3072	C:\WINDOWS\Tasks\

Other Files Related to KMSVC.DLL.MUI

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
OneX_v1.xsd	XML Schema Definition	Windows 7	5957	C:\Windows\L2Schemas\
OneX_v1.xsd	XML Schema Definition	Windows 8.1	5957	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8	7504	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 7	15591	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows XP	15263	C:\Windows\L2Schemas\

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