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What are the Methods to Resolve QuickBooks Error 4120? | Forum

Topic location: Forum home » Support » General Questions
Henry Smith
Henry Smith Jul 18 '21

QuickBooks error code 4120 is usually seen with an error message “QuickBooks has encountered a problem and needs to be shut down for any further explanation”. The error code 4120 can be seen due to a handful of factors and also there can be certain fixes for the same.

In case you are facing the QuickBooks error 4120, then you can read this post till the end or for any further assistance contact our accounting professionals 1-800-761-1787.
Visit us - https://qbsenterprisesupport.com/quickbooks-error-4120
Jake Paul
Jake Paul Aug 11 '21
How to Resolve QuickBooks Error 4120?

The following solutions can be implemented in order to fix the error:


Solution 1: Check if there are any System Errors
  • Update the antivirus and antimalware programs on your system.
  • Perform a full scan of the system once the program has been activated.
  • Fix the bugs and eliminate the virus and malware, if any.
  • In case, there is no virus and the problem persists, apply other solutions.

Solution 2: Use the QuickBooks File Doctor Tool
  • Download and install the QuickBooks File Doctor application tool.
  • Run the QuickBooks File Doctor and will diagnose and eliminate the error.
Solution 3: Copy the Company Related Files to another System
  • Copy all the company related files to another system and check if they are opening in this system or not.
  • If the file opens in this system, then it will be advised to repair the Windows on the system on which QuickBooks was initially installed.
  • In case the files do not open in the new system also, then they are damaged. To repair the damaged files, use QuickBooks File Doctor Tool as mentioned in Solution 2.
Solution 4: Repair/Reinstall QuickBooks
  • To uninstall QuickBooks, go to the Control Panel and select uninstall.
  • Select QuickBooks and try to repair it when given the option.
  • If the error still persists, then uninstall and reinstall the QuickBooks.
Some Other Solutions
  • Clean out the junk and trash files from your system.
  • Repair the registry entries related to the error.
  • Use Windows System Restore so that you can undo the recent changes in the system.


Hope this helps you out.

Helen Girouard
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