Download duser.dll to Fix Errors

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

duser.dll file Windows DirectUser Engine. 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 duser.dll related errors on your device. You can also download duser.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista, Windows XP 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, Windows XP

File info

General information
Filename duser.dll
File extension DLL
Description Windows DirectUser Engine
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Dynamic link library
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 duser.dll file. duser.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 duser.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to duser.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 duser.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.

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

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

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

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows XP: ---

If the steps did not solve your duser.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 duser.dll
System Windows 10
File size 480256 bytes
Date 2017-03-18
File details
MD5 99b8b1dc752b511433f468e0d79d4af0
SHA1 7dd9d05adbda76e841c27ecb9da7aaad3347dede
SHA256 d90240dd92f9b5d78150a4c8a2761622a3e9da858ce3a3acc66da9c2feffc492
CRC32 b757f2e7
Example file location C:\Windows\System32\
Filename duser.dll
System Windows 8.1
File size 506880 bytes
Date 2014-11-21
File details
MD5 27097a653b844b5ebe62a2a753f16725
SHA1 75f2326aefd01af5aca4cfe2eb225452a53dc531
SHA256 8053742fb5f5fa19dd3502c1e50309d6b59adc6ce56592a41ca75f266ed71c36
CRC32 ebc48234
Example file location C:\Windows\System32\
Filename duser.dll
System Windows 8
File size 570880 bytes
Date 2012-07-26
File details
MD5 fe4d3f3c0f40b9cf957091847704d22e
SHA1 09ab32e31bc794466345e08f29f59f1d665feb0e
SHA256 fc13b33be3635dbf6718e7a5825d2939649cec0e77c8822a19254885b0b1b73b
CRC32 b291cc31
Example file location 1: C:\Windows\System32\
Filename duser.dll
System Windows 7
File size 181248 bytes
Date -0001-11-30
File details
MD5 6e1f8165c365d35c8e3c045af0cdd481
SHA1 9e58c89d6d1df4c0dbd0a2e4699f4df2959ca80f
SHA256 b861360d0a014265a0beb4cc2fe31ea05ae95120e8b07820c13a044d64c00e2b
CRC32 92d52c3c
Example file location C:\Windows\System32\
Filename duser.dll
System Windows 7
File size 260608 bytes
Date 2009-07-14
File details
MD5 8ccde014a4cdf84564e03ace064ca753
SHA1 957e29e029fe60b8ff43ff732463c39230b78226
SHA256 dd663029b2eb7b12fdb00fce403d8326141e540e3b9ce84cd5871473d3e2e2cf
CRC32 0d87afa3
Example file location C:\Windows\System32\
Filename duser.dll
System Windows Vista
File size 250368 bytes
Date 2008-01-21
File details
MD5 16881b42e07390faa8c7331e9b8316a7
SHA1 a9bd4cabd26670b1014bea3ece4d50e4c7c5fb44
SHA256 cf68ad56e7880dd899ab5e7c36b92abaaec4d521f17dc42022554fd3c98571e5
CRC32 e9bfc234
Example file location ---
Filename duser.dll
System Windows Vista
File size 183808 bytes
Date -0001-11-30
File details
MD5 75eb73e64f5b4655d9797d20f26de320
SHA1 ffd4c40c7eaf22e352671fa44229c5c1ad49386c
SHA256 4aa94d039ac5bd7d39766c4e2a4f7dfcdd46782d3b2483677d722949a7b790fc
CRC32 6def9f6f
Example file location ---
Filename duser.dll
System Windows XP
File size 304128 bytes
Date 2008-04-14
File details
MD5 3d41a9326f0376fc73af961dd23b1fb1
SHA1 2c6d1b9d0973ea6cb623c9858ffba6f7b79e5a30
SHA256 1242f3b57599675d1e0e26615e206ce3db15fa6a23bc5d21eb630ee9858ebc7b
CRC32 a612e563
Example file location ---