Share via

Exchange 2019 CUs fail - qfe patch is not applicable

George Thalassinos 36 Reputation points
2021-12-02T10:00:28.513+00:00

I have come across an Exchange 2019 who is still at CU5. I am trying to get it to the current CU (that is 11) but am unable to even apply CU6.

  • Windows Server 2019 is at 1809 and fully updated (that is, no more updates are being reported by the Windows Update function)
  • .Net Framework is at 4.8.03761
  • Exchange is at 2019 CU5 (15.2.595.3)
  • Patch to be installed is CU6 (15.2.659.12)
  • (filename).msp is permitted to run at the 'unrestricted' authorization level
  • Installation success or error status: 1642

Log file excerpt with error

MSI (s) (8C:DC) [15:40:27:808]: SequencePatches starts. Product code: {CD981244-E9B8-405A-9026-6AEB9DCEF1F1}, Product version: 15.2.595.3, Upgrade code: {A4A259AB-A77F-4039-832A-27B431DDFFEA}, Product language 1033 MSI (s) (8C:DC) [15:40:27:811]: PATCH SEQUENCER: verifying the applicability of QFE patch C:\Users\Administrator\Downloads\Exchange CUs\CU06-2021-03-Exchange2019-KB5000871-x64-en.msp against product code: {CD981244-E9B8-405A-9026-6AEB9DCEF1F1}, product version: 15.2.595.3, product language 1033 and upgrade code: {A4A259AB-A77F-4039-832A-27B431DDFFEA} MSI (s) (8C:DC) [15:40:27:811]: PATCH SEQUENCER: QFE patch C:\Users\Administrator\Downloads\Exchange CUs\CU06-2021-03-Exchange2019-KB5000871-x64-en.msp is not applicable.

Any help will be greatly appreciated

Exchange | Exchange Server | Management
0 comments
Accepted answer
  1. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-12-02T13:06:24.773+00:00

    Ok, go straight to CU11, you dont need to go to CU6 first.

    Then apply the November 2021 security update

    Follow these steps, rebooting after EACH step and running from an ELEVATED PROMPT.

    https://learn.microsoft.com/en-us/exchange/plan-and-deploy/prepare-ad-and-domains?view=exchserver-2019

    Run each step separately:
    Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON /PrepareSchema
    Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON /PrepareAD
    Setup.exe /IAcceptExchangeServerLicenseTerms_DiagnosticDataON /PrepareAllDomains

    Then install CU11:
    CU11:
    https://www.microsoft.com/en-us/download/details.aspx?id=103477

    Then install the security patch:

    Critical Patch:
    https://support.microsoft.com/en-us/topic/description-of-the-security-update-for-microsoft-exchange-server-2019-2016-and-2013-november-9-2021-kb5007409-7e1f235a-d41b-4a76-bcc4-3db90cd161e7

    1 person found this answer helpful.

1 additional answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. KyleXu-MSFT 26,396 Reputation points
    2021-12-03T05:43:52.847+00:00

    @George Thalassinos

    For Exchange 2019 CU 11, you also need to install the IIS URL Rewrite Module before installing Exchange server.
    154721-qa-kyle-13-41-58.png

    1 person found this answer helpful.

Your answer

Answers can be marked as Accepted Answers by the question author, which helps users to know the answer solved the author's problem.