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Learn how to fix QuickBooks EventID 4 – An Unexpected Error has Occurred in QuickBooks: Returning NULL QBWinInstance Handle

This article is related to troubleshooting of QuickBooks error “EventID 4 – An Unexpected Error has Occurred in QuickBooks: Returning NULL QBWinInstance Handle”. As we know QuickBooks is the best accounting software program that is widely used for small or large business entrepreneurs. This software has many advanced features in QuickBooks which help entrepreneurs to manage their accounting with ease.

quickbooks event log error 4

However, a few QB users deal with some error messages sometimes. In this blog, we are going to discuss about one of the most common errors i.e. ‘QuickBooks EventID 4‘. Let’s review this error and know the possible steps to solve this error.

QuickBooks Event ID 4: An unexpected error has occurred in QuickBooks: Returning NULL QBWinInstance Handle.
Description Event ID 4: An unexpected error has occurred in QuickBooks WPR: calling ABORT_CLOSE
Description Returning NULL QBWinInstance handle
Problem An unexpected error has occurred in QuickBooks WPR: OpenPrinter call failed
Description Integration Manager couldn’t connect to QuickBooks. Please make sure that it is open: when it takes place.
Description An unexpected error has occurred in QuickBooks WPR: SetNameDriverAndPort call failed
Event ID 4:An unexpected error has occurred in QuickBooks WPR: validation failed

To learn further about QuickBooks Event log Error 4, make sure to read this segment carefully, or you can further get in touch with our tech support team at +1-844-499-6700, and we will provide you with the required assistance immediately.

Also Read: How to Fix Qbwin.Log: Lvl_error – Verify Online Account Information or Invalid Customer Id Number?

What Causes QuickBooks Event Log ID 4 Log Error 4?

QuickBooks Event ID 4 Error Message - Screenshot
QuickBooks Event ID 4 Error Message – Screenshot

There can be a couple of factors triggering such an error. Let us explore them one by one:

  • Windows .NET Framework 4.0 SP 1 on a Windows 7 computer
  • Other Windows components do not function properly
  • Some error tampering with the Windows registry
  • Another trigger can be the inadvertent deletion of essential QB files
  • Windows components malfunctioning.

What are the signs of QuickBooks event ID error 4?

The below signs can help you identify such an error in QuickBooks:

  • One of the basic signs can be if the QuickBooks desktop software hangs repeatedly
  • Another sign can be if the system is running extremely slow and takes a long time to respond
  • Windows crashes repeatedly
  • QuickBooks crashing again and again

Steps to Solve QuickBooks Event Log ID 4 Error

Below are few steps to resolve this error.

Solution 1: Reinstall .Net Framework on Windows

Repair or Reinstall Microsoft .NET Framework - Screenshot
  • First of all, you need to Press the Windows + R keys together at the same time. This will open the Run window on your system.
  • After that type appwiz.cpl in the Run dialog box.
  • Now Press Enter key, on your keyboard.
  • There is an option to Add/Remove all programs, under the programs and featured list.
  • Locate and click on the Microsoft.NET Framework 3.5 or later versions.
  • Choose the Uninstall option. (Note: This will take 1-2 minutes to uninstall the program).
  • Once the uninstall process is completed restart your system once.
  • When restarts are completed you have to repeat the step 1 to open the Run windows on your system.
  • Type Control Panel to open the control panel.
Control Panel - event log error 4
  • Now you will see the Add/Remove programs or Programs & Features window.
  • There is an option to Add or Remove Windows Features that is located on the left-hand side of the windows.
  • Now click on the Add or Remove Windows Features option.
  • From the list of programs click on Microsoft .NET Framework to expand.
  • Check-mark the first and second boxes.
  • Press OK.
  • (Note: Microsoft .NET Framework installation will start after clicking on the OK button)
  • Click on the finish button once and the whole task is over.
  • Once the installation is successfully complete for Microsoft .Net Framework 3.5, just restart your system and open QuickBooks Integration Manager once again.

Solution 2: Run QuickBooks Install Diagnostic Tool

Download QuickBooks Installation Diagnostic Tool - Screenshot
  • Firstly, Download QuickBooks Install Diagnostic tool.
  • After that Install this tool on your system.
  • You need to follow the instructions as they are given on your desktop screen while installing it on your system.
  • Once the installation is completed, Exit all the running applications on Windows.
  • Finally, run the QuickBooks install diagnostic tool to repair your problems and restart your computer.

Solution 3: Run Quick Fix My program from tool hub program

Run Quick Fix My Program - Screenshot
  • At first, the user needs to close the QuickBooks Desktop.
  • After that download the QuickBooks Tool Hub program.
  • Now run the downloaded file QuickBooksToolHub.exe.
  • Click on the agree to the terms and conditions option.
  • The user should then choose the Destination folder to install the tool hub
  • And click on Next button again.
  • After that, hit on the Install button to commence the installation process.
  • This will open the successful installation message on the screen
  • Double-click on the tool hub icon and launch the QuickBooks Tool Hub.
  • Move to the Program Problems tab and go for the Quick Fix my Program option.
  • Let the tool spot the issue and perform the necessary steps
  • Wait for the process to complete
  • This will fix the issue

Solution 4: Reinstall QuickBooks using the clean install tool

If none of the above procedures helped you in fixing the error event log 4, try clean installing QuickBooks.

QuickBooks clean install tool - Screenshot
  • The very first step is to open the QuickBooks Tool Hub installed earlier.
  • And then go for the Installation issues tab and then head to the QuickBooks clean install tool.
  • The user should now click on I accept and choose the QuickBooks version currently using
  • Hit the Continue tab and OK button respectively

Read Also: How to Print Form 1099 and 1096 in QuickBooks Desktop?

Winding up!

quickbooks event log error 4 is a unique error that isn’t experienced commonly. However, we believe that reading the above segment might have helped you in some way to get rid of the event log ID error 4 successfully. However, if you have any issues or queries, you can reach out to our team of certified ProAdvisors using our QuickBooks error support number i.e. +1-844-499-6700. We are always ready to provide flawless services that suit your business.

Frequently Asked Questions!

What is QuickBooks Event Log Error 4?

QuickBooks Log 4 error is a technical error in QuickBooks that appears due to a corrupted .NET Framework.

In which QuickBooks desktop versions, the Event id 4 error occurs?

The Event ID 4 error typically occurs in the following versions of QuickBooks:
QuickBooks Desktop 2018, QuickBooks Desktop 2017, QB Desktop 2016

What error messages appears when QuickBooks Event Log ID error happens?

When a QuickBooks Event Log ID 4 error occurs, you may see one of the following error messages:
1. “An unexpected error has occurred in “QuickBooks”: Returning NULL QBWinInstance Handle”
2. “Unhandled Exception Caught! Exiting application…”
3. “QuickBooks has encountered a problem and needs to close.”
4. “Exception in the file [path and filename]”
5. “Application has generated an exception that could not be handled”

How can I fix Error 4 in QuickBooks?

This error can be fixed by performing the below-given methods:
1: Repair/Reinstall.NET Framework.
2: Run QuickBooks Install diagnostic tool.
3: Run the Quick Fix My Program feature.
4: Clean Install QuickBooks.


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How to Fix QuickBooks Error Code 80029c4a?

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