How to Download and Fix UNIDRVUI.DLL.mui Errors

Last Updated: 11/26/2023
[Average Article Time to Read: 4.7 minutes]

UniDriver User Interface files, such as UNIDRVUI.DLL.mui, are considered a type of Win32 DLL (Driver) file. They are associated with the MUI file extension, developed by Microsoft for Microsoft® Windows® Operating System.

UNIDRVUI.DLL.mui was first released for Windows Vista Operating System on 11/08/2006 with Windows Vista. The latest version update [v6.3.9600.16384 (winblue_rtm.130821-1623)] for Windows was 8.1 released on 10/18/2013. UNIDRVUI.DLL.mui is packaged with Windows 8.1, Windows 8, and Windows 7.

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

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	UNIDRVUI.DLL.mui
File Extension:	MUI file extension
Description:	UniDriver User Interface
Object File Type:	Driver
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 (British)
File Flags:	(none)
File Flags Mask:	0x003f
Entry Point:	0x0000

View Other UNIDRVUI.DLL.mui Information

File Info	Description
File Size:	12 kB
File Modification Date/Time:	2014:11:21 06:16:30+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:	11776
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:	0.3.9600.16384
Product Version Number:	6.3.9600.16384
File Flags Mask:	0x003f
File Flags:	(none)
File OS:	Windows NT 32-bit
Object File Type:	Driver
File Subtype:	12
Language Code:	English (British)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	UniDriver User Interface
File Version:	6.3.9600.16384 (winblue_rtm.130821-1623)
Internal Name:	UNIDRVUI.DLL
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	UNIDRVUI.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 UNIDRVUI.DLL.mui Error Messages?

Dynamic Link Library UNIDRVUI.DLL.mui Errors

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

Access Violation at address - UNIDRVUI.DLL.mui.
UNIDRVUI.DLL.mui could not be found.
Cannot find C:\Windows\System32\spool\drivers\w32x86\3\en-GB\UNIDRVUI.DLL.mui.
Cannot register UNIDRVUI.DLL.mui.
Cannot start Windows. A required component is missing: UNIDRVUI.DLL.mui. Please install Windows again.
Failed to load UNIDRVUI.DLL.mui.
The application has failed to start because UNIDRVUI.DLL.mui was not found.
The file UNIDRVUI.DLL.mui is missing or corrupt.
This application failed to start because UNIDRVUI.DLL.mui was not found. Re-installing the application may fix this problem.

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

Step 2: Run SFC (System File Checker) to restore the corrupt or missing UNIDRVUI.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 UNIDRVUI.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 UNIDRVUI.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 UNIDRVUI.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 UNIDRVUI.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 UNIDRVUI.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 UNIDRVUI.DLL.mui file version. We maintain a comprehensive database of 100% malware-free UNIDRVUI.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 UNIDRVUI.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\spool\drivers\x64\3\en-US\
Windows 7: C:\Windows\System32\spool\drivers\x64\3\en-US\
Windows 8: C:\Windows\System32\spool\drivers\w32x86\3\en-US\
Windows 8.1: C:\Windows\System32\spool\drivers\w32x86\3\en-GB\

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 UNIDRVUI.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 UNIDRVUI.DLL.mui Files (Malware-Tested 100% Clean)

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

UNIDRVUI.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:	11264
File Date:	11/02/2006
MD5 Checksum:	6e662ba35d9c67f0f15ecbe050198da9
SHA1 Checksum:	fe883403206cd0e3fab3f26453580330d273d019
SHA256 Checksum:	307bcdc082c89dd188945ef9390196cf349c97ac612328ccc2d0247bce26c5f5
CRC32:
File Directory Location:	C:\Windows\System32\spool\drivers\x64\3\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.0
Initialized Data Size:	10752
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

UNIDRVUI.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:	12288
File Date:	11/21/2014
MD5 Checksum:	2997f2637330d54ea5b928f47b04170c
SHA1 Checksum:	4b5029cb1cd3001411bf75c841edf4e91cb838eb
SHA256 Checksum:	0e449e9a16cc1fdffa5ab21a9939bc4cd1ebea16a7c5a5b20ec67b310c321ee5
CRC32:
File Directory Location:	C:\Windows\System32\spool\drivers\w32x86\3\en-GB\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	11776
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

UNIDRVUI.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:	11264
File Date:	07/26/2012
MD5 Checksum:	30b00b59af524cfdcf904befdb8e1848
SHA1 Checksum:	4e37bebf7fb41b51cc64e49591d7c2a95ab92eff
SHA256 Checksum:	487c87340abc724c15bca7217ac858cf0178c05c56456e2c87ec2df054a11706
CRC32:
File Directory Location:	C:\Windows\System32\spool\drivers\w32x86\3\en-US\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.2
Initialized Data Size:	10752
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

UNIDRVUI.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:	11264
File Date:	04/12/2011
MD5 Checksum:	b0fc12ed96c55028be84a84e0b13874b
SHA1 Checksum:	0d6a37058ac75afb179a807bdcba15e401ee368c
SHA256 Checksum:	969d9c4ccad2dee64328a5d9f4362ae785ea828a934b262e802c5d2cbeab5f2e
CRC32:
File Directory Location:	C:\Windows\System32\spool\drivers\x64\3\en-US\

File Version, System, and Machine Information
File Type:	Win64 DLL
Image Version:	6.1
Initialized Data Size:	10752
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 UNIDRVUI.DLL.mui

MUI Files Related to UNIDRVUI.DLL.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
mrinfo.exe.mui	Multicast Information	Microsoft® Windows® Operating System (6.0.6000.16386)	8704	C:\Windows\System32\Sysprep\Panther\
BthLEEnum.sys.mui	Bluetooth LE Bus Enumerator	Microsoft® Windows® Operating System (6.3.9600.16384)	12800	C:\Windows\System32\LogFiles\WMI\RtBackup\
SetNetworkLocation.dll...	Set Network Location Utility	Microsoft® Windows® Operating System (6.2.9200.16384)	2560	C:\Windows\System32\LogFiles\WMI\RtBackup\
fsquirt.exe.mui	Myriad User Instrument	Microsoft® Windows® Operating System (10.0.15063.0)	13824	C:\Windows\Panther\UnattendGC\
clb.dll.mui	Column List Box	Microsoft® Windows® Operating System (10.0.15063.0)	3584	C:\Windows\Panther\UnattendGC\

Other Files Related to UNIDRVUI.DLL.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WWAN_profile_v1.xsd	XML Schema Definition	Windows 7	6201	C:\Windows\L2Schemas\
WWAN_profile_v1.xsd	XML Schema Definition	Windows 10	6201	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8	7504	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	16142	C:\Windows\L2Schemas\
WLAN_policy_v1.xsd	XML Schema Definition	Windows 7	7405	C:\Windows\L2Schemas\

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