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Error 1618: Another installation is already in progress

Error 1618 occurs when installing or updating TurboTax:

Another installation is already in progress. Complete that installation before proceeding with this install.

Possible Cause

Windows or another program may be installing software on your computer as part of an update service.

Solution

When the installation-in-progress completes, install (or update) TurboTax.

Note: If the error occurs again, restart your computer, and then update TurboTax.

 

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