The update installer has encountered an internal error - [solved]

Error 1603: The update installer has encountered an internal error

Cause of this error

This error is mainly caused by the corrupt or damaged installation file for windows.

How to fix it

We 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

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Are you getting the following error message?

"An error occurred when QuickBooks tried to access the company file. Please try again. If the problem persists, contact Intuit Technical Support and provide them with the following error code: (-6129, -101)."

Reason for the Quickbooks error 6129?

• Because Quickbooks is not updated to latest version in both workstations and the server.
• Wrong configuration of multi-user setting.
• Obsolete Service (QuickBooksDBXX) on the server.
• May be due to data corruption in quickbooks data file.
• No proper permission for the folder which has company files eg. quickbooks error 6073

Solution for the Quickbooks error 6129

• Update the Quickbooks to latest version both in server and the clients.
• Restart the Service on server.
• Close the software in the individual machines and reopen it. 
• In all the workstations Stop and start hosting multi user access under File -> Utilities
• Make sure the tlg and qbw files are in the same name with different extensions. If so rename the file, that should solve the problem. (right click on the file and rename)
• Logout of all other users.
• Try the Quickbooks Doctor Recovery tool

I hope you have figured it out.  I know your time is valuable, we are happy to help you. Call the quickbooks online support phone number

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