Have you ever seen QuickBooks event log error 4? This error is a bit complicated and not so common. It is often seen with a warning message that states: EventID: An unexpected error has occurred in QuickBooks: Returning NULL QBWinInstance Handle. It can also be seen with a warning message stating: Integration manager could not connect to QuickBooks. Please make sure that it is open. This error can be seen due to only two main reasons i.e., Windows .Net framework 4.0 SP1 on a windows 7 computer or other windows components do not function properly. To learn the fixes for this issue, make sure to read this post till the end. Or you can also consult our team at + 1(844)405-0907, and we will provide you with immediate support services. 

See Also:  Error 61686 when installing QuickBooks

What causes QuickBooks event id 4 error in QuickBooks?

The user can end up in such an error due to the following factors:

•        This error can be caused due to handful of factors. Let us have a look:

•        One of the most common reasons can be damaged company file

•        Or if the windows registry is corrupted

•        Also, if there is any sort of virus or malware attack

•        The user can also face similar issue if QuickBooks files got deleted mistakenly

Steps to fix the issue

The below steps can be performed to eliminate the error permanently in QuickBooks.

•        The very first step is to log in to the system as admin

•        The next step is to press windows + R tabs respectively

•        Once done with that, the user should move to run box enter control and click on ok

•        After that, visit the program and features or add/remove programs window

•        The user can also directly open the Program and Features window or Add/Remove programs

·         Window by typing appwiz.cpl in the Run box and hitting the Enter button.

•        Choose to uninstall for Microsoft framework 4.0

•        After that restart your PC.

•        Open Run by pressing Windows and R keys.

•        Enter Control.

•        The next step is to click OK and Control Panel will open.

•        Open the Program and Features window or Add/Remove programs window.

•        Search for Add Remove Windows Features on the left side.

•        And then click on Add Remove Windows Features to view Windows Feature screen.

•        Expand .NET Framework in the Windows Feature screen so that Microsoft .NET 3.5 is visible.

•        Checkmark against both the first and second options.

•        After that click the OK button so that .NET Framework 3.5 gets install on your computer.

•        After .NET Framework 3.5 installation has completed, press the Finish button.

•        Finally, restart your PC and you are done with the process

Towards the end of this post, we hope that the information shared in above might have helped in fixing QuickBooks event log error. However, if you experience the same issue again even after performing the steps above, then consult our QuickBooks technical support  at + 1(844)405-0907 and we will provide you with immediate support services. We are a team of certified QuickBooks professionals who work round the clock in providing instant support services.