How to Fix Unexpected Error: An Error has Occurred in QuickBooks? – [Resolved]

Users may come across one of these ‘unexpected’ errors while starting QuickBooks in Windows:

  • Unexpected Error: An error has occurred in QuickBooks. Please restart QuickBooks and try again. If you continue to experience this error, please note the C= value and contact technical support. C=342.
  • Unexpected Error: An error has occurred in QuickBooks. C=342. QuickBooks has encountered a problem and needs to close.
  • QBW32: This program has performed an illegal operation and will be shut down. If the problem persists, contact the program vendor. DETAILS: QBW32 caused an invalid page fault in module APPCORE.DLL.

Causes Behind The Unexpected Error : An Error has Occurred in QuickBooks

The above errors can occur due to the following reasons:

  • QBW32.EXE file, the QuickBooks Desktop shortcut, is in Microsoft Windows compatibility mode.
  • The company data file has been damaged.

Symptoms of Unexpected Error: An Error has Occurred in QuickBooks

Symptoms

System Requirements to avoid Unexpected Error: An Error has Occurred in QuickBooks

system requirements

Precautions to take before Resolutions Unexpected Error: An Error has Occurred in QuickBooks

precautions to take

Solutions of Unexpected Error : An Error has Occurred in QuickBooks

Below are some steps to resolve Unexpected Error: An Error Has Occurred in QuickBooks:

  • Opening a Sample File
  • Disabling Windows Compatibility Mode

Users must first try to ensure that there’s no data damage by trying to open a QuickBooks sample company file. In case the error persists, the Windows compatibility mode must be disabled.

1. Solution One: Opening a Sample File

Below are some steps to open the sample file:

  • Users must hold down the Ctrl key while opening QuickBooks. Once the ‘No Company Open’ window appears, the Ctrl key must be released. If the error crops up before the ‘No Company Open’ window opens, users must take steps to disable the Windows compatibility mode.
  • When the ‘No Company Open’ window opens, users must select ‘Open a sample file’ and then choose any sample file from the list.
  • If the sample file opens without showing the error, the company file might be damaged. If this is the case, then users must go through ‘Verifying and rebuilding QuickBooks company data’ or restore the company file from a backup file.
  • In case the error occurs when the sample file is opened, Windows compatibility mode must be disabled.

2. Solution Two: Disabling Windows Compatibility Mode

Users must first right-click on the QuickBooks icon on the desktop and select ‘Properties. Next, select the ‘Compatibility’ tab. Now, uncheck ‘Run this program in compatibility mode for’ and select OK. If this option is not selected, choose ‘Cancel’ and proceed to the next step.

A. Disabling compatibility mode for QBW32.EXE file

Steps to Disabling compatibility mode for QBW32.EXE file:

  • First, users must right-click on the QuickBooks icon on their desktop and select ‘Properties’. Next, they must select the ‘Shortcut’ tab and then choose ‘Find Target’, which will open the QuickBooks installation folder.
  • Now, users must right-click on the QBW32.EXE file and select ‘Properties’. Next, select the ‘Compatibility’ tab. Now, users must uncheck ‘Run this program in compatibility mode for’ and select OK. If this option isn’t checked, then select ‘Cancel’.
  • Now, exit Windows Explorer and close the QuickBooks Desktop shortcut properties window.
  • Next, open QuickBooks Desktop again and try to reopen the company file.

In case the error persists, or if users seek more information or further assistance, they should call our QuickBooks experts team at CALL NOW. The support team consists of qualified and well-informed experts who offer 24/7 QuickBooks assistance.

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