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Install exchange 2016 CU19 failed

alan gao 176 Reputation points
2021-03-06T23:11:30.24+00:00

I got below message when installing exchange 2016 CU19 from CU15

Couldn't remove product with code cd981244-e9b8-405a-9026-6aeb9dcef1f1. The installation source for this product is not available.

how can it be fixed? Thanks.

Exchange | Exchange Server | Management
Exchange | Exchange Server | Management

The administration and maintenance of Microsoft Exchange Server to ensure secure, reliable, and efficient email and collaboration services across an organization.


Answer accepted by question author

Kai Yao 37,791 Reputation points Moderator
2021-03-08T08:30:23.68+00:00

Hi, @alan gao

Agree with Ashok, please post the detailed Exchange setup log about the error message.

Besides, here is a thread in the similar situation which may be helpful: Exchange 2013 cannot upgrade from CU9 to CU23 without the CU9 install media
Please refer to the answer and see if it works for you.

Also please note that serious problems might occur if you modify the registry incorrectly.


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  1. Ashok M 6,876 Reputation points
    2021-03-07T09:37:06.62+00:00

    Hi @alan gao ,

    How are you running the setup - GUI or command prompt? Please share the error message from that setup to assist (cover your personal information while sharing). Also, you can share the logs from <system drive>:\ExchangeSetupLogs\ExchangeSetup.log

    This error looks like issue while installing windows pre-requisites. Please make sure to install all windows pre-requisites and restart the server before running the Exchange setup.

    https://learn.microsoft.com/en-us/exchange/plan-and-deploy/prerequisites?view=exchserver-2016#windows-server-2016-prerequisites-for-exchange-2016

    If the above suggestion helps, please click on "Accept Answer" and upvote it.

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