Get the latest methods to resolve QuickBooks Event ID 4 – An Unexpected Error:
Event Log Error 4 occurs when there is an issue with the .NET Framework 4.0 in Windows 7. It is one such error that you may face very often and keeps your annoying repeatedly. As we all know that, QuickBooks is one of the best and widely used accounting software and has proved to be very useful for small and medium businesses. It helps them in keeping a track of their accounts seamlessly.
But many users face errors with QuickBooks desktop that hampers their work and sometimes, lead to loss of company file data and some other important data. In this case, it is important to find a solution as soon as possible.

When QuickBooks Event Log Error 4 occurs, the following message appears on your desktop screen:
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 |
Symptoms of QuickBooks Event Id Error 4
You may get one or more similar symptoms at the time QuickBooks Event ID Log Error 4 problem occurs:
- QuickBooks hangs a lot and you might see an unexpected event log error 4 repeatedly on your desktop screen.
- The computer is running extremely slow and takes a long time to respond to commands.
- Windows crashes again and again.
- QuickBooks software experiencing repeated crashing.
Causes of QuickBooks Event Log Error 4
There are a bunch of factors that can drag you into such an error. The most prominent ones are enlisted as follows:
- Window components are not functioning properly.
- Damaged or corrupted QuickBooks file.
- Incomplete QuickBooks desktop installation.
- Windows .NET framework 4.0 SP 1 on a Windows 7 computer can cause this error.
- Some error in the Windows registry.
- QB files have been removed by some other program.
You may also see: Steps to Fix Unrecoverable Error in QuickBooks Desktop
Here’s how you can fix QuickBooks Event id 4 Error in Windows
Firstly, checkout the following infographic image in order to troubleshoot the QuickBooks event ID log error 4:
You can also follow the manual solution methods that are given below:
Method 1: Reinstall .NET Framework on Windows
- Open the Run Window using the ‘Win + R’ short key.
- After that, type appwiz.cpl in the dialog box. Then press Enter key.
- As the new screen opens, hit a click on Add/Remove under the Programs and Features list.
- Find Microsoft .NET framework 3.5 and click on it. If the latest version is available, locate it.
- Now hit a click on Uninstall.
- Once it is uninstalled successfully, restart your system.
- Open Run Windows again and type Control panel.
- Again click on Add or Remove Windows feature located on the left side of the windows.
- From the list, click Microsoft. NET. Framework.
- Now tick mark the first and second box and then hit a click on OK.
- Once you perform all the previous steps, click on ‘Finish.’
- Lastly restart your system and open QuickBooks Integration Manager.
Method 2: Run Quick Fix My Program from Tool Hub Program
QuickBooks tool hub program has the ability to fix most common errors that occurs at the time of installation, updation and downloading the software. To run quick fix my program, go with the following steps:
- Under this method, firstly you need to close your QuickBooks.
- After that download the QuickBooks Tool Hub program from here.
- After that run the downloaded file QuickBooksToolHub.exe file.
- Now you are required to click on Agree the terms and conditions.
- Followed by choosing the Destination folder in order to install the tool hub.
- Furthermore, click on Next button.
- Once done with that, click on Install button to start the installation process.
- QuickBooks tool hub program successfully installed on your system message appear on your desktop screen.
- After that click on Finish tab.
- In the next step, double click on the tool hub icon and open the QuickBooks tool hub program.
- Now go to the Program Problems tab and select Quick Fix my Program.
- Let the tool run to identify any issues and fix them. It might take some time.
Method 2: Run QuickBooks Install Diagnostic Tool
Run QuickBooks install diagnostic tool from tool hub program
- Under this method, it is required to open the tool hub program on your system.
- You now have to go to Installation issues tab and select QuickBooks Install Diagnostic tool.
- Let the tool run for 15 to 20 minutes.
- Once the tool completes the scan process, reboot your system and open QuickBooks desktop.
Manually use QuickBooks install diagnostic tool
- Download QuickBooks Install Diagnostic Tool and Install it in your system.
- Follow the instructions given on your screen and install it.
- Once it is installed, exit all the applications that are running on the background.
- Lastly, run Install diagnostic tool to troubleshoot all your problems and then, restart your computer.
Read this Also: What are the uses of QuickBooks auto data recovery function?
Method 4: Reinstalling QuickBooks using Clean Install Tool
You can perform the steps below and try reinstalling QuickBooks using clean install tool. Before making use of the tool and performing the steps mentioned, it is suggested to create a backup of the company files. The reason being the tool will delete all of the QuickBooks data from the computer.
- You need to open QuickBooks tool hub installed earlier.
- Furthermore, click on Installation issues tab and also select Clean install tool option.
- Later on, click on I accept and select QuickBooks version you are currently using.
- Finish the process by clicking on Continue tab and OK button.
Read it Also: How to Fix Outlook is missing in Send Forms Preferences Error in QuickBooks?
Winding Up!
We have firm confidence that the troubleshooting methods given above assisted you in resolving the QuickBooks Event Log Error 4. In case the solutions given above do not help you in fixing the same problem, then you can get in touch with our accounting experts on our QuickBooks error support number, i.e., 1-800-761-1787. Our experts are readily available to addressing all your queries.
FAQs
Event Log 4 error is a technical snag in QuickBooks that appears due to a corrupted .NET Framework.
This error mainly occurs in QuickBooks Desktop 2018, 2017, and QuickBooks Desktop 2016 versions.
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.” etc.
This error can be resolved by performing any of the following methods:
1: Run QuickBooks Install diagnostic tool from tool hub program.
2: Also, launch the Quick Fix My Program to fix such errors.
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