How to Download and Fix ACWZUSR12.ACCDU?

Sometimes Windows system displays error messages regarding corrupted or missing ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU file can therefore effect in failed execution of the started process.

ACWZUSR12.ACCDU file Microsoft Access Add-in Data. The file was developed by Microsoft for use with Office software. Here you will find detailed information about the file and instructions how to proceed in the event of ACWZUSR12.ACCDU related errors on your device. You can also download ACWZUSR12.ACCDU file compatible with Windows 10, Windows 7, Windows Vista, Windows 8 devices which will (most probably) allow you to solve the problem.

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

File info

General information
File extension ACCDU
Type Microsoft Access Application
Description Microsoft Access Add-in Data
Program Office 2010
Software Office
Author Microsoft
Software version 2010
File size 3440640
Oldest file 2017-05-10
Latest file 2017-05-10

There are various types of errors related to ACWZUSR12.ACCDU file. ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU file. If you encounter one listed below (or similar), please consider the following suggestions.

  • ACWZUSR12.ACCDU is corrupted
  • ACWZUSR12.ACCDU cannot be located
  • Runtime Error - ACWZUSR12.ACCDU
  • ACWZUSR12.ACCDU file error
  • ACWZUSR12.ACCDU file cannot be loaded. Module was not found
  • cannot register ACWZUSR12.ACCDU file:
  • ACWZUSR12.ACCDU file could not be loaded
  • ACWZUSR12.ACCDU file doesn't exist



Application could not be started because ACWZUSR12.ACCDU file is missing. Reinstall the application to solve the problem.


Problems related to ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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.

ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU file

The last solution is to manually download and replace ACWZUSR12.ACCDU 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 ACWZUSR12.ACCDU file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of ACWZUSR12.ACCDU file example directory paths.

  • Windows 10: C:\Program Files\Microsoft Office\Office15\ACCWIZ\
  • Windows 7: C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\
  • Windows Vista: ---
  • Windows 8: ---

If the steps did not solve your ACWZUSR12.ACCDU 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

System Windows 10
File size 3424256 bytes
Date 2017-05-10
File details
MD5 77aa2c9239aa8d464bb458a73c067e04
SHA1 86487e9b24026f408e84f89b0422c8e1a468c131
SHA256 60bda11b827fc294313e9b677bc2d65bea02c8039ffbe9afa0e29a17e5519172
CRC32 d4908b2a
Example file location C:\Program Files\Microsoft Office\Office15\ACCWIZ\
System Windows 7
File size 3440640 bytes
Date 2017-05-10
File details
MD5 461f8ee59554fbf460fe0e445673de65
SHA1 86abccc0cdcbd75150ec9d5112413a3910e82643
SHA256 37a758816d3527d3792df8a9a55ef534069c9fde71cc93b89f6f0c65a43a902d
CRC32 c1bd51e3
Example file location C:\Program Files (x86)\Microsoft Office\Office14\ACCWIZ\
System Windows Vista
File size 3416064 bytes
Date 2017-05-10
File details
MD5 4be12a476bf4112c4c1c4001e2e0465f
SHA1 791a0ff426bd17efecc813f2d4187c7a24b94a86
SHA256 1c6edcfd1ee0f21247d454416d1340d801b6635c334bcccb6a9b1213b95b5306
CRC32 ac1a7965
Example file location ---
System Windows 8
File size 3424256 bytes
Date 2017-05-10
File details
MD5 77aa2c9239aa8d464bb458a73c067e04
SHA1 86487e9b24026f408e84f89b0422c8e1a468c131
SHA256 60bda11b827fc294313e9b677bc2d65bea02c8039ffbe9afa0e29a17e5519172
CRC32 d4908b2a
Example file location ---