Repair and Download DU.dll Now

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

DU.dll file Dynamic Update. 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 DU.dll related errors on your device. You can also download DU.dll file compatible with Windows 8.1, Windows 8, Windows 7 devices which will (most probably) allow you to solve the problem.

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

File info

General information
Filename DU.dll
File extension DLL
Description Dynamic Update
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
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.)

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

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



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


Problems related to DU.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 DU.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.

DU.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 DU.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 DU.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 DU.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 DU.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the DU.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 DU.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 DU.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 DU.dll file

The last solution is to manually download and replace DU.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 DU.dll file.

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

  • Windows 8.1: C:\WINDOWS\system32\oobe\
  • Windows 8: 1: C:\WINDOWS\system32\oobe\
  • Windows 7: C:\WINDOWS\system32\oobe\

If the steps did not solve your DU.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 DU.dll
System Windows 8.1
File size 77824 bytes
Date 2014-11-21
File details
MD5 1fcd203568801bcac7fae8ae38b5b5fe
SHA1 7d3b90dfa585e97d5f55bf6541e55733fdf958af
SHA256 c8c235fc8a1204ccf7e86a9cd55a51333ff23d27acee08e28b277a023c2c3166
CRC32 7b92e348
Example file location C:\WINDOWS\system32\oobe\
Filename DU.dll
System Windows 8
File size 56320 bytes
Date 2012-07-26
File details
MD5 8cc5bceb063b0628b26efb2418be1fd1
SHA1 95bf2758a66e783e979ab34f4c0449f50db37e80
SHA256 8457cb808e7da5cd1ad68a00f32545966f061dd6816df061b957d19ebc19609b
CRC32 4a4faae4
Example file location 1: C:\WINDOWS\system32\oobe\
Filename DU.dll
System Windows 7
File size 91136 bytes
Date 2009-07-14
File details
MD5 a9cbe4b5d10bf0ec8da781b78ee15a47
SHA1 47e0aaf530d5dac2050f93f2c17cb0b79fb03fb9
SHA256 3d6e1249c71d8ed3607d610336d1956d597967f07e1619bb44c39d201a77469a
CRC32 0b50c03d
Example file location C:\WINDOWS\system32\oobe\