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OptionalFeatures.exe.mui Informations - Download and Fix

Sometimes Windows system displays error messages regarding corrupted or missing OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui file can therefore effect in failed execution of the started process.

OptionalFeatures.exe.mui file Windows Features. 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 OptionalFeatures.exe.mui related errors on your device. You can also download OptionalFeatures.exe.mui file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista

File info

General information
Filename OptionalFeatures.exe.mui
File extension MUI
Description Windows Features
Software
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
Details
MIME type application/octet-stream
File type Executable application
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)
Fix File Errors

There are various types of errors related to OptionalFeatures.exe.mui file. OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui file. If you encounter one listed below (or similar), please consider the following suggestions.

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

OptionalFeatures.exe.mui

Error

Application could not be started because OptionalFeatures.exe.mui file is missing. Reinstall the application to solve the problem.

OK

Problems related to OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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.

OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui file

The last solution is to manually download and replace OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui file.

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

  • Windows 10: C:\Windows\System32\en-US\
  • Windows 8.1: C:\Windows\System32\en-GB\
  • Windows 8: 1: C:\Windows\System32\en-GB\
  • Windows 7: C:\Windows\SysWOW64\en-US\
  • Windows 7: C:\Windows\SysWOW64\en-US\
  • Windows Vista: ---
  • Windows Vista: ---

If the steps did not solve your OptionalFeatures.exe.mui 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 OptionalFeatures.exe.mui
System Windows 10
File size 2560 bytes
Date 2017-03-18
File details
MD5 191e365d412c35d32761a975011f2102
SHA1 3283da1938d55853e1139cfcc777ffaedd668889
SHA256 2e47b9526662f4278631f7b2df99318b09c5350937048e4de06559a42c14b767
CRC32 09c67778
Example file location C:\Windows\System32\en-US\
Filename OptionalFeatures.exe.mui
System Windows 8.1
File size 2048 bytes
Date 2014-11-21
File details
MD5 a480ae0cc02a304ac00039e09b7ff98d
SHA1 51f7c6f8c37aaee6970d3b31d9fe99636c29dd0f
SHA256 5b9d348c3531fecfe2756d1ee41e692588c1c74384cabd264e13420247700e74
CRC32 12c5d890
Example file location C:\Windows\System32\en-GB\
Filename OptionalFeatures.exe.mui
System Windows 8
File size 2048 bytes
Date 2012-07-26
File details
MD5 4129a2f24a147fabae84af04a0dc9bd1
SHA1 b8e2a2e1c0808032d0b1d234d9ac95c99f1d0edb
SHA256 bd186f72dc0fba2252f31fde4601bd2b5cdc7596013723963c7b821563bdabc7
CRC32 0e92581e
Example file location 1: C:\Windows\System32\en-GB\
Filename OptionalFeatures.exe.mui
System Windows 7
File size 2048 bytes
Date -0001-11-30
File details
MD5 6a3070552dcb83e4db60c8b3003ccf5f
SHA1 e37b7cc931842d9f53ac66a2a8d6ab24d7baae0f
SHA256 51c1b78a6ab97e138d07035c402ac4b59f5bb61861548b0dfbba287b8613ea0b
CRC32 0c011f35
Example file location C:\Windows\SysWOW64\en-US\
Filename OptionalFeatures.exe.mui
System Windows 7
File size 2048 bytes
Date 2011-04-12
File details
MD5 9837dd6e688b3490df6bd8a3af8941e4
SHA1 d83168d5563a01a22da60564ba6c3a5f13d77eee
SHA256 126f9de7ec38e610f56e419bc001afe91361d08dd7545a9238b962de9ada0ea8
CRC32 989e8673
Example file location C:\Windows\SysWOW64\en-US\
Filename OptionalFeatures.exe.mui
System Windows Vista
File size 2048 bytes
Date 2006-11-02
File details
MD5 52e32dcb648ac99c2173e4a833beaf90
SHA1 2833b96f02a74e6a39f253f4dcebdee4f6bb7ee5
SHA256 3ae5e2f6cbcaa5ad0c7b66c5729ec906a8069652c1491f736e7a61a33ee9ce06
CRC32 e36f69a0
Example file location ---
Filename OptionalFeatures.exe.mui
System Windows Vista
File size 2560 bytes
Date -0001-11-30
File details
MD5 898dd55d23896df916d0999d59f0b650
SHA1 3dc3cc1fdbaa63dbb9773260bfe9dc552bd6aa53
SHA256 0a22f508633299e6d2ab3a52a57f3970e7f828fa5248879d97c3f33445f67fe3
CRC32 e51f5442
Example file location ---