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Error 1603: The update installer has encountered an internal error

What is happening

When installing a QuickBooks product update, the following error occurs:

Error 1603: The update installer has encountered an internal error

This error can be caused by a damaged Microsoft Windows Installer file or a damaged QuickBooks installation.

How to fix it

Intuit recommends three solutions for this problem. The first solution may solve your problem, or you may need to try all three to resolve the issue. For best results, perform the solutions in the order presented here.

Solution 1: Download and run QBInstallTool.exe file

Download the QBInstallTool.exe file that will attempt to resolve this issue. Save the file to your desktop, double click the file to run the tool. 

If you continue to receive the error after using the QBInstallTool,exe file, go to Solution 2.

Solution 2: Repair QuickBooks

After the Repair process is complete, restart your computer and then open QuickBooks. If you still encounter the problem, go to Solution 3.

Solution 3 : Reinstall QuickBooks

If this solution does not resolve the issue, you can read discussions and post messages and questions relating to your issue on the Intuit QuickBooks Community site for free or you can contact a technical support agent for additional guidance. Fees may apply.



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