How To Resolve QuickBooks Event ID 4 Error? [Comprehensive Solutions]

Several Windows components are required by the QuickBooks software to function seamlessly. Microsoft .NET Framework 4.0 is one such component, in which a slight damage can result in QuickBooks Event ID 4 error. While trying to open the QuickBooks Integration Manager (QB), an error message appears on your screen reading: 

“Integration Manager could not connect to QuickBooks. Please make sure that it is open” when it takes place.” 

OR 

“QuickBooks event ID 4 – An unexpected error has occurred in QuickBooks: Returning NULL QBW in Instance Handle”. 

You might be looking for the reasons that trigger this issue. Well, to help you with that, we have covered all the possible causes in the next section of this blog.

What Brings Forth QuickBooks Event ID 4 Error Message?

As said, there are several reasons that evoke QuickBooks event id 4 error in Windows. Thus, below we have listed all such reasons:

• QB event id 4 error takes place due to a damaged or corrupted QuickBooks company file.
• QuickBooks Event ID 4 Error Message results due to the damage caused by a virus or malware attack.
• Another reason can be incorrect or impartial installation of the QuickBooks application.
• Due to damage in the Windows registry.
• When the background application starts hampering the QuickBooks processes and accidently deletes an essential QB related file.

Troubleshooting Methods To Fix QuickBooks Event Log Error 4 Error

Here, we have listed some of the possible resolutions methods by implementing which you would be able to resolve QuickBooks event ID 4 error: 

Method 1: Reinstall .Net Framework on Windows

One of the apparent reasons for getting errors and warnings in the Windows event log is incompatibility of Microsoft .NET Framework with third-party applications. Thus, you need to reinstall and update .NET Framework to resolve the QuickBooks Event ID 4 error.

• Press Windows + R keys simultaneously to open Run Window. Type command Appwiz.cpl and press Enter.
• Under the Programs and Features list, search and click Microsoft .Net Framework followed Uninstall/Change
• Restart your computer once the uninstallation process completes.
• Go back to the Programs and Features window and click Add / Remove Windows Features from the left side panel.
• From the list of programs, click Microsoft .Net Framework to expand.
• Further, mark the first & second checkbox and select OK.
• Follow the on-screen instructions to Completely uninstall the MS framework installation.
• Once you have removed the previous installation, download and install the latest version of Microsoft .Net Framework 4.8.
• Lastly, restart Windows and open QuickBooks Integration Manager once again.

Method 2: Run QuickBooks Install Diagnostic Tool

One must download QuickBooks Tool Hub, a collection of all the troubleshooting tools that QuickBooks offers to its users. It can help you resolve multiple errors like QuickBooks Event Log Error 4 that take place while using the QuickBooks application:

Open QB Tool Hub and go to the Installation Issues tab and select QuickBooks Install Diagnostic Tool.

• If you have manually downloaded the tool then, open the downloads of your computer and double-click the QB Install Diagnostic file.
• Complete the installation process by following the instructions that appear on your screen.
• Further, exit all the running applications on Windows.
• Lastly, run the QB Install tool and restart your computer.

Also Read:- [Resolved]: QBDBMgrN Not Running on This Computer Error?

Method 3: Reinstall QuickBooks using Clean Install Tool

Note: Before you begin to implement the below-given steps, make sure to create a backup of your company file to keep it secure from any data loss.

• Open QuickBooks Tool Hub and click on the Installation Issues tab and select Clean Install Tool.
• After that, click on I Accept and select the QuickBooks version that you are currently using.
• Lastly, click on continue and then OK.

Find An Expert To Fix Event ID 4 Error!

We have listed all the possible effective resolution methods that can help you fix QuickBooks Event ID 4 error. However, if you get stuck and need any further assistance, we would suggest you give us a call on Asquare Cloud Hosting Helpline Number 855-856-0053.