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How to Repair MUOPTIN.DLL? Download Now

Sometimes Windows system displays error messages regarding corrupted or missing MUOPTIN.DLL files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent MUOPTIN.DLL file can therefore effect in failed execution of the started process.

MUOPTIN.DLL file Office 2007 Microsoft Update Opt-in Wizard. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of MUOPTIN.DLL related errors on your device. You can also download MUOPTIN.DLL file compatible with Windows 10, Windows 10, Windows 7, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 10, Windows 7, Windows Vista
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Fix MUOPTIN.DLL errors

File info

General information
Filename MUOPTIN.DLL
File extension DLL
Description Office 2007 Microsoft Update Opt-in Wizard
Software
Program Microsoft Update Opt-In
Author Microsoft Corporation
Details
MIME type application/octet-stream
File type Executable application
System Windows NT 32-bit
Copyrights © 2010 Microsoft Corporation. All rights reserved.
Character set Windows, Latin1
Language cod Neutral
MUOPTIN.DLL

There are various types of errors related to MUOPTIN.DLL file. MUOPTIN.DLL file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to MUOPTIN.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

  • MUOPTIN.DLL is corrupted
  • MUOPTIN.DLL cannot be located
  • Runtime Error - MUOPTIN.DLL
  • MUOPTIN.DLL file error
  • MUOPTIN.DLL file cannot be loaded. Module was not found
  • cannot register MUOPTIN.DLL file:
  • MUOPTIN.DLL file could not be loaded
  • MUOPTIN.DLL file doesn't exist

MUOPTIN.DLL

Error

Application could not be started because MUOPTIN.DLL file is missing. Reinstall the application to solve the problem.

OK

Problems related to MUOPTIN.DLL can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing MUOPTIN.DLL file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

MUOPTIN.DLL file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with MUOPTIN.DLL file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to MUOPTIN.DLL file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of MUOPTIN.DLL or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to MUOPTIN.DLL file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the MUOPTIN.DLL file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the MUOPTIN.DLL file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the MUOPTIN.DLL file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace MUOPTIN.DLL file

The last solution is to manually download and replace MUOPTIN.DLL file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded MUOPTIN.DLL file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of MUOPTIN.DLL file example directory paths.

  • Windows 10: C:\Program Files\Common Files\microsoft shared\OFFICE15\
  • Windows 10: C:\Program Files\Common Files\microsoft shared\OFFICE15\
  • Windows 7: ---
  • Windows Vista: ---

If the steps did not solve your MUOPTIN.DLL file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename MUOPTIN.DLL
System Windows 10
File size 35160 bytes
Date 2017-03-18
Download
File details
MD5 ffd3ac652153ddd3b21d95c89cf13250
SHA1 75639d580731ef7c95d6b1e76ebc48930ec5f380
SHA256 b89ee95f4e16c37b39d77903d30d4171572b352eca0eea35b92fd24696b789de
CRC32 8f58552d
Example file location C:\Program Files\Common Files\microsoft shared\OFFICE15\
Filename MUOPTIN.DLL
System Windows 10
File size 21144 bytes
Date 2017-05-10
Download
File details
MD5 7e9cbe299a02e3063fd644e86e096645
SHA1 9a06af89ca98659157436af8b894a0971ed55426
SHA256 4f1a71b6262b1ee86e6b6527d2670b0f6c7c8cb1b6bb9d83598775d0fd3a2d19
CRC32 b56e69ba
Example file location C:\Program Files\Common Files\microsoft shared\OFFICE15\
Filename MUOPTIN.DLL
System Windows 7
File size 20880 bytes
Date 2017-05-10
Download
File details
MD5 a01d25e24c9774fcc651dcdc88982e67
SHA1 303c1ab3a7961c1c7fb5470d5f9ac55f5e21e66c
SHA256 b1669216576ad805d94c9f7df283e5a8bad15196567b384ffb6b929e07fdaae3
CRC32 022073ef
Example file location ---
Filename MUOPTIN.DLL
System Windows Vista
File size 20304 bytes
Date 2017-05-10
Download
File details
MD5 a4981796e83878ea8bda9b2df7ceb018
SHA1 4d4cc473ea704f563974464755cb7e8510f1791c
SHA256 8119e8c405ab576b966382e0abf8f9e0aeee8140a81da285d8eefb1a51b28016
CRC32 f37f5335
Example file location ---