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In some situations, QuickBooks Desktop while runs into an error where running the QB Desktop app gives an error message “QuickBooks has Stopped Working” with Error Name: BEX. This error is also known as a BEX error in QuickBooks and can appear in any version of the Windows operating system. BEX error does not mainly appears in QuickBooks but also other Windows applications gets affected like Microsoft Outlook, Mozilla Firefox, Internet Explorer and various other applications.

 Causes of QuickBooks BEX Error

  • Damaged of components like .NET Framework and Visual Basic C++.
  • Third-party security applications interrupting QuickBooks activity.
  • Missing of QuickBooks QBWUSER.INI file.
  • Corruption of your hard-drive.
  • Company file name is too long.
  • Improper installation of QuickBooks Desktop.
  • Windows operating system files are damaged.

Important points to consider before following the troubleshooting steps

  • Assure yourself that you are using an updated version of QuickBooks Desktop.
  • Do not use lengthy names of company file and make sure it’s character length is
  • Disable any antivirus or anti-malware app and try running QuickBooks
  • If after disabling of virus, it works then removes QuickBooks from such application’s scan list.
  • Reinstall QuickBooks using Clean Install Tool, as it will eliminate any installation errors causing QuickBooks BEX error.

Steps to Fix BEX Error in QuickBooks

Step 1: Perform Windows Update

Updating your Windows to the latest will also update Windows components that QuickBooks involve to function correctly like MSXML, Microsoft .Net Framework, and C++.

  • Press Windowskey on your keyboard and in search box type Windows Update.
  • Click on Windows Updateicon at the top of the list.
  • Select Check for Updates and once the Windows has finished downloading the updates, click Install Updates.
  • Restart your computer or update QuickBooks to see if the error is resolved.

2: Rename Hidden System File Config.msi

  • Press Windows key and click on Computer.
  • From the left side panel click Local Disk (C:).
  • Click Organize from the top >> select Folder and Search Options.
  • Click Organize from the top >> select Folder and Search Options.
  • Under the View tab >>  unmark the Hide Protected Operating System Files
  • Click Apply and then OK.
  • Now in the search bar search for Config.msi file.
  • Right-click Config.msi file and select Rename.
  • Add .OLD at the end of the file name, e.g. (Config.msi.OLD).

Step 3: Download and Use QB Install Diagnostic Tool

  • Select the link and download QB Install Diagnostic Tool.
  • Once the download is finished, exit from other applications that are running on Windows.
  • Click on the setup file from the Downloads.
  • Select Yes on the EULA Agreement
  • Click Proceed on the QuickBooks Desktop Install Diagnostic Tool window.
  • When the update is completed, restart your Windows.

Step 4: Rename the Folders where QB is installed

Step 5: Perform a Clean Installation of QuickBooks Desktop on Windows

  • Press Windows + R key together to open the Run Window.
  • Enter the command Control Panel in the search bar of the Run Window.
  • In Programs and Features list look for QuickBooks and click Uninstall/Change.
  • Download QuickBooks Clean Install Tool.
  • Open QuickBooks Clean Install Tool and click I Accept on the license agreement page.

For further assistance feel free to contact QuickBooks Support Number our technical support team is available 24X7 to fix your error or issues at their best or you can directly mail us at You can also visit @ Our expertise will revert you back within 24 hrs.

Post Author: qbooks247

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