Exchange 2013 Troubleshooting: Client Access Role install error (Part 1)

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In my lab, while installing Exchange 2013 on another server, the following error was thrown:

"The Registry Key "Software\Microsoft\ExchangeServer\V15\Transport" does not exist under "HKEY_LOCAL_MACHINE""

https://collaborationpro.com/wp-content/uploads/2016/09/cas1-300x261.jpg

Navigating to that registry key, sure thing that the key doesn't exist.

Solution:

Right Click V15 and add a new Key and call it Transport. Exit the setup and start it again and it should complete.