How to Fix Sdengin2.dll.mui Problems and Download Updates

Last Updated: 11/30/2023
[Average Article Time to Read: 4.7 minutes]

sdengin2.dll.mui, also known as a Microsoft® Windows Backup Engine file, was created by Microsoft for the development of Microsoft® Windows® Operating System. MUI files fall under under the Win32 DLL (Dynamic link library) file type category.

The release of sdengin2.dll.mui introduced for Windows was on 11/08/2006 in Windows Vista. The latest file version for Windows 10 is v10.0.15063.0 (WinBuild.160101.0800) released on 07/29/2015. sdengin2.dll.mui is included in Windows 10, Windows Vista, and Windows 8 versions.

Please see below for more detailed information, MUI file troubleshooting instructions, and free downloads of different versions of sdengin2.dll.mui.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	sdengin2.dll.mui
File Extension:	MUI file extension
Description:	Microsoft® Windows Backup Engine
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 sdengin2.dll.mui Information

File Info	Description
File Size:	30 kB
File Modification Date/Time:	2017:03:18 04:57:20+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:	30208
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:	Microsoft® Windows Backup Engine
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	SDENGINE.DLL
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	SDENGINE.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 sdengin2.dll.mui Error Messages?

Dynamic Link Library sdengin2.dll.mui Errors

sdengin2.dll.mui is considered a type of Dynamic Link Library (DLL) file. Dynamic Link Library files, like sdengin2.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 sdengin2.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 sdengin2.dll.mui is attempted to be loaded either when Windows is starting up, or in some cases already running. Some of the most common sdengin2.dll.mui errors include:

Access Violation at address - sdengin2.dll.mui.
sdengin2.dll.mui could not be found.
Cannot find C:\Windows\System32\en-US\sdengin2.dll.mui.
Cannot register sdengin2.dll.mui.
Cannot start Windows. A required component is missing: sdengin2.dll.mui. Please install Windows again.
Failed to load sdengin2.dll.mui.
The application has failed to start because sdengin2.dll.mui was not found.
The file sdengin2.dll.mui is missing or corrupt.
This application failed to start because sdengin2.dll.mui was not found. Re-installing the application may fix this problem.

Your sdengin2.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, sdengin2.dll.mui file corruption could be caused from a power outage when loading Windows, system crash while loading sdengin2.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 sdengin2.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 sdengin2.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 sdengin2.dll.mui error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing sdengin2.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 sdengin2.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 sdengin2.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 sdengin2.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 sdengin2.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 sdengin2.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 sdengin2.dll.mui file version. We maintain a comprehensive database of 100% malware-free sdengin2.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 sdengin2.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 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 sdengin2.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 sdengin2.dll.mui Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying sdengin2.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 sdengin2.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

sdengin2.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:	30720
File Date:	03/18/2017
MD5 Checksum:	c0cced870e0bf5c9ab982ef46936eefa
SHA1 Checksum:	6bcc8198d257990f91c2e2d508ff8d2f07d1056a
SHA256 Checksum:	2637185193d82c7fdd7b3da5d20a73673b986103ee788985f8703cc17f276c08
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:	30208
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 Vista

File Name

Software Version

File Version

Architecture

sdengin2.dll.mui

6.0.6001.18000

6.0.6001.18000 (longhorn_rtm.080118-1840)

32-bit (x32)

Expand for Detailed File Information +

OS Version:	Windows Vista
Software:	Microsoft® Windows® Operating System
Software Version:	6.0.6001.18000
File Version:	6.0.6001.18000 (longhorn_rtm.080118-1840)
File Size:	16384
File Date:	01/21/2008
MD5 Checksum:	8255f0ea68b6f7db1018225082cb1eae
SHA1 Checksum:	e20eaaf5935274bce4eaaa61c3e6b6effb7fbac0
SHA256 Checksum:	1b36bba2609ac20b0658caa848a13b0843ff9ea495c93a189bc02a168ff9701d
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:	15872
Linker Version:	8.0
Machine Type:	AMD AMD64
PE Type:	PE32+
Subsystem:	Windows GUI
Subsystem Version:	5.2
File Modification Date/Time:	01/21/2008

Windows 8

File Name

Software Version

File Version

Architecture

sdengin2.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:	29696
File Date:	07/26/2012
MD5 Checksum:	908fa01235840831aed3cedfc95e08d5
SHA1 Checksum:	9622c188a335672f98f6d826e05d04147006e2ea
SHA256 Checksum:	51ed2760018af9c1dd35a22dc79ed656dddb80cbba3d9117a7577cc70833c8ec
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:	29184
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

sdengin2.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:	29696
File Date:	04/12/2011
MD5 Checksum:	be4b2e32da795b1037a5f175b171f0a2
SHA1 Checksum:	132d1fc648b07b8f0b3a85f1a018462b3e6da328
SHA256 Checksum:	090712bd490bd7d7159a9da72574c97d5126cd7dffdba197624b3b6f3f962b6c
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:	29184
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 sdengin2.dll.mui

MUI Files Related to sdengin2.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
pwlauncher.dll.mui	Windows To Go Launcher	Microsoft® Windows® Operating System (10.0.15063.0)	6656	C:\Windows\System32\LogFiles\WMI\RtBackup\
windows.ui.xaml.dll.mui	Myriad User Instrument	Windows 8	27648	C:\Windows\System32\LogFiles\WMI\RtBackup\
uxtheme.dll.mui	Microsoft UxTheme Library	Microsoft® Windows® Operating System (6.2.9200.16384)	7168	C:\WINDOWS\Tasks\
tracert.exe.mui	TCP/IP Traceroute Command	Microsoft® Windows® Operating System (6.1.7600.16385)	6656	C:\Windows\System32\Sysprep\Panther\
wsepno.dll.mui	Profile notification support for Windows Search Service	Windows® Search (7.0.15063.0)	4608	C:\Windows\Logs\DPX\

Other Files Related to sdengin2.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
WLAN_profile_v1.xsd	XML Schema Definition	Windows Vista	15591	C:\Windows\L2Schemas\
WLAN_profile_v1.xsd	XML Schema Definition	Windows XP	15263	C:\Windows\L2Schemas\
LAN_profile_v1.xsd	XML Schema Definition	Windows 7	2241	C:\Windows\L2Schemas\
LAN_profile_v1.xsd	XML Schema Definition	Windows 8.1	2241	C:\Windows\L2Schemas\
LAN_profile_v1.xsd	XML Schema Definition	Windows 10	2241	C:\Windows\L2Schemas\

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