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Exchange setup failed to install error code 1619

I am upgrading Exchange 2016 CU3 to Exchange 2016 CU9. Updates for Exchange Servers are essential, just like all other systems. Bugs get fixed, and new features get introduced. That’s always great to see. This time the Exchange setup failed, and an error occurs. Let’s have a look at why the error is showing and the solution to it.

Run Command Prompt as administrator. Run the command to start the Exchange Cumulative Update.

Why are we getting this error, and what is the solution for Exchange setup failed to install error code 1619?

Solution for Exchange setup failed to install error code 1619

We are going to rerun the Cumulative Update from the Command Prompt. This time, make sure that the drive is filled in the command. In my example, the ISO is mounted as drive letter E.

Let’s run the command.

The Exchange Cumulative Update did complete successfully. The next step is to restart the system and check the event logs for errors and warnings.

Keep reading: Exchange setup can’t continue PowerShell has open files »


In this article, you learned why Exchange setup failed to install error code 1619. Run Command Prompt as administrator and fill the drive of the mounted Exchange ISO in the command. Microsoft did write about this error and that this is happening in PowerShell. In my end, it did occur in the Command Prompt.

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ALI TAJRAN is a passionate IT Architect, IT Consultant, and Microsoft Certified Trainer. He started Information Technology at a very young age, and his goal is to teach and inspire others. Read more »

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