How to Fix QuickBooks Event log Error 4?

figure out how to fix QuickBooks EventID 4:

This article is related to investigating of QuickBooks error”EventID 4 – An Error has started in QuickBooks: Returning NULL QBWinInstance Handle”. As we most likely know about it that QuickBooks is the best bookkeeping and accounting programming program that is by and large used for close-to-nothing or gigantic business visionaries to fix quickbooks event log errors. This item has many high-level elements which help business visionaries with managing their accounting easily.

Regardless, relatively few QB clients deal with some mistake messages now and again. In this blog, we will analyze one of the most broadly perceived blunders for instance ‘QuickBooks EventID 4’. We ought to review this blunder and know the expected advances toward handling this mistake.

You might see this blunder messages on your work area screen:

Mix Manager couldn’t interface with QuickBooks. Kindly ensure that it is open

Or on the other hand

QuickBooks Event ID 4 – An unforeseen mistake has happened in “QuickBooks”: Returning NULL QBWinInstance Handle.

QuickBooks Event id 4

When it comes to accounting, QuickBooks is known as the best accounting software that has been adopted by numerous small to mid-sized businesses. Unlike other windows, software QuickBooks also encounters errors during certain operations, which can be resolved quickly with as little downtime as possible. One such error is the Event id 4 error that arises when the user launches the (QB) QuickBooks Integration Manager tool. The error message” “Integration Manager could not connect to QuickBooks. Please make sure that it is open” is displayed to the user. Another error message that you may notice is “QuickBooks Event ID 4 – An unexpected error has occurred” “QuickBooks: Returning NULL QBWinInstance Handle” under Windows Event Viewer. This Windows-specific error can also affect QuickBooks installed on the server.

What Causes QuickBooks Event Log ID 4 Log Error 4?

A few Windows parts cooperate to run any application on your PC easily without creating any blunders. In any case, while these supporting parts don’t work as expected, QuickBooks Desktop experiences mistakes. You could get an Event id 4 mistakes on the off chance that you have introduced .Net Framework 4.0 or any past adaptation on your PC running on Windows 7 Service Pack 1.

  • Windows .NET Framework 4.0 SP 1 on a Windows 7 PC
  • Different window parts don’t work as expected

Troubleshooting Steps to Fix Event id 4 Error in QuickBooks:

Troubleshooting Step 1: Reinstall .Net Framework on Windows

The contradiction of the Microsoft .NET Framework with the outsider applications is one of the most well-known explanations behind getting mistakes and alerts in the Windows occasion log. In this way, reinstalling and refreshing .NET Framework physically settle the mistake by and large.

1. Press Windows key+ letter R all the while on your console to open Run Window.
2. Type order Appwiz.CPL and press Enter.

3. Under the Programs and Features list, find and snap Microsoft .Net Framework.
4. Select Uninstall/Change, and after the uninstallation interaction finishes, restart your PC.

5. Now explore back to the Programs and Features window, and from the left side board, click Add/Remove Windows Features.
6. From the rundown of projects, click Microsoft .Net Framework to extend.
7. Checkmark the first and second checkboxes and select OK.
8. Follow the directions as they show up on the screen to totally uninstall the MS system establishment.
9. After eliminating the past establishment, download and introduce the most recent variant of Microsoft .Net Framework 4.8,
10. Finally, restart Windows and open QuickBooks Integration Manager indeed.

Troubleshooting Step 2: Run QuickBooks Install Diagnostic Tool:

1. Download QuickBooks Tool Hub, an assortment of all the investigating instruments QuickBooks brings to the table immediately.
2. Navigate to the Installation Issues tab and choose QuickBooks Install Diagnostic Tool.
3. If you have physically downloaded the device then, at that point, open the downloads of your PC and double tap the QB Install Diagnostic record.
4. Follow the guidelines given on the screen to finish the establishment.
5. Exit every one of the running applications on Windows.
6. Finally, run the QB Install device and restart your PC.

Troubleshooting Step 3: Reinstall QuickBooks using Clean Install Tool:

before performing this step, make a point to take a reinforcement of your organization document or contact support at 1.855.738.2784 for help, as running this tool will erase all of your QuickBooks information from the PC.
1. To start with, open QuickBooks Tool Hub that you have introduced before in the past step.
2. Hit the Installation Issues tab and choose Clean Install Tool.
3. Click I Accept and choose the QuickBooks adaptation you are utilizing.
4. Finally, click Continue, and afterward select OK.


As a final troubleshooting step, you can have a go at introducing the .NET Framework application that accompanies the QuickBooks establishment CD. Embed the establishment plate into the CD drive and open the establishment circle utilizing the Explore choice. Presently search and run the ThirdPartyDotNET20dotnetfx20.exe document from the circle. Adhere to the on-screen directions to introduce the most viable adaptation of the .NET Framework with your QuickBooks Desktop variant


Steps to Solve QuickBooks Event Log ID 4 Error

The following are a couple of moves toward resolving this blunder.

Solution 1: Reinstall .Net Framework on Windows

  • First, you want to Press Windows + R keys together simultaneously. This will open the Run window on your framework.
  • After that sort appwiz.CPL in the Run exchange box.
  • Presently Press Enter key, on your console.
  • Then, at that point, Add/Remove all projects, under the projects and included list.
  • Find and snap on the Microsoft.NET Framework 3.5 or later adaptations.
  • Pick Uninstall choice.
  • Once the uninstall cycle is finished restart your framework once.
  • When restarts are finished you need to rehash stage 1 to open the Run windows on your framework.
  • After that Type Control Panel to open the control board.
  • Then you will see Add/Remove projects or Programs and Features window.
  • There is a choice to Add or Remove Windows Features that are situated on the left-hand side of the windows.
  • Presently click on Add or Remove Windows Features choice.
  • From the rundown of the projects hit a tick on Microsoft .NET Framework to extend.
  • Mark the first and second boxes.
  • Press OK.
  • (Note: Microsoft .NET Framework establishment will begin subsequent to tapping on the OK button)
  • Click on the completion button once and the entire assignment is finished.
  • When the establishment will effectively finish for Microsoft .Net Framework 3.5, then restart your framework and open QuickBooks Integration Manager and by.

Solution 2: Run QuickBooks Install Diagnostic Tool

  • Download the QuickBooks, and most importantly, Install the Diagnostic device.
  • Then Install this device on your framework.
  • After that adhere to the directions as they are given on your work area screen while introducing it to your framework.
  • When the establishment is finished, Exit every one of the running applications on Windows.
  • Finally, run the QuickBooks introduce demonstrative apparatus to fix your concerns and restart your PC.


I truly need to accept that you might find this blog critical and by following these methods you have successfully tended to your QuickBooks occasion Log blunder 4. In any case, if you have any issues or questions, you can acknowledge an expert’s proposal and ideal organizations by talking with our QuickBooks mistake support group. We are constantly ready to serve the ideal organizations that suit your business. Appreciation for visiting us. I want to see you soon here for a deal just find out the internet connection with the help of using a setting option on a machine. Ensures that you have got a default IE latest version of a web browser. Make an IE setting by configuring them. Reconfigure your QB accounting software and an internet connection with all your bookkeeping and accounting-related issues.