Download Defragres.dll.mui and Troubleshoot Errors

Last Updated: 12/07/2023
[Time Required for Reading: 3.5 minutes]

Microsoft\Drive Optimizer Resources files such as defragres.dll.mui utilize the MUI file extension. This file is considered a Win32 DLL (Executable application) file, and was first created by Microsoft for the Microsoft® Windows® Operating System software package.

The first release of defragres.dll.mui for the Windows 8.1 platform was on 10/18/2013 for Windows 8.1. The most recent release for Windows 10 launched on 07/29/2015 [version 10.0.15063.0 (WinBuild.160101.0800) release].

Please continue reading to find your correct defragres.dll.mui file version download (free), detailed file information, and MUI file troubleshooting instructions.

File Analysis Provided by Jason Geater (Author)

File Overview

General Information ^✻
File Name:	defragres.dll.mui
File Extension:	MUI file extension
Description:	Microsoft\Drive Optimizer Resources
Object File Type:	Executable application
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 defragres.dll.mui Information

File Info	Description
File Size:	2.5 kB
File Modification Date/Time:	2017:03:18 05:02:20+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:	2048
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:	Executable application
File Subtype:	0
Language Code:	English (U.S.)
Character Set:	Unicode
Company Name:	Microsoft Corporation
File Description:	Microsoft\Drive Optimizer Resources
File Version:	10.0.15063.0 (WinBuild.160101.0800)
Internal Name:	defragres.dll
Legal Copyright:	© Microsoft Corporation. All rights reserved.
Original Filename:	defragres.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 defragres.dll.mui Error Messages?

Dynamic Link Library defragres.dll.mui Errors

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

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

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

Step 2: Run SFC (System File Checker) to restore the corrupt or missing defragres.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 defragres.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 defragres.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 defragres.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 defragres.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 defragres.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 defragres.dll.mui file version. We maintain a comprehensive database of 100% malware-free defragres.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 defragres.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 8.1: C:\Windows\System32\en-GB\
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 defragres.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 defragres.dll.mui Files (Malware-Tested 100% Clean)

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

defragres.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:	2560
File Date:	03/18/2017
MD5 Checksum:	49ddb0d29d2ce01d3c78c89d49f905a2
SHA1 Checksum:	2743aa59e65ca7a8e89a3e5b193863845d1c581c
SHA256 Checksum:	eaee9a81410f004985bc5d1fe8600ead4ab28e5327b3d57f1afd4adc65008a3c
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:	2048
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

defragres.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:	2048
File Date:	11/21/2014
MD5 Checksum:	874b735a8a10d7f5bdbc9a23dc9554c8
SHA1 Checksum:	1521a1830260d9d53922f99668b358ddaacf4cf1
SHA256 Checksum:	823c913d7ad2238c56fe266f3482fe422fffa42e99e7b43daaa75956ac0b7b03
CRC32:
File Directory Location:	C:\Windows\System32\en-GB\

File Version, System, and Machine Information
File Type:	Win32 DLL
Image Version:	6.3
Initialized Data Size:	1536
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

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Files Related to defragres.dll.mui

MUI Files Related to defragres.dll.mui

File Name	Description	Software Program (Version)	File Size (bytes)	File Location
ipsecsvc.dll.mui	Myriad User Instrument	Windows 7	2560	C:\Windows\Panther\UnattendGC\
upnp.dll.mui	Myriad User Instrument	Windows Vista	2560	C:\Windows\System32\Sysprep\Panther\
offFilt.dll.mui	OFFICE Filter	Microsoft® Windows® Operating System (2008.0.9600.16384)	2048	C:\Windows\System32\Sysprep\Panther\
WWAHost.exe.mui	Myriad User Instrument	Windows 8.1	19968	C:\Windows\System32\LogFiles\WMI\RtBackup\
msdtcVSp1res.dll.mui	Myriad User Instrument	Windows 7	16896	C:\WINDOWS\Tasks\

Other Files Related to defragres.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\
WWAN_profile_v1.xsd	XML Schema Definition	Microsoft Office Access 2010 14	6201	C:\Windows\Temp\527D94AF-D053-4381-B105-0D815D5...
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 8	7504	C:\Windows\L2Schemas\
WLANAP_profile_v1.xsd	XML Schema Definition	Windows 10	7548	C:\Windows\L2Schemas\

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