Security Update For Exchange Server 2016 CU21 (KB5007409)

Dean Maher 71 Reputation points
2021-11-15T20:37:55.147+00:00

Hello

I've just updated an exchange server to CU 20 ,SU 3 to Cu 21.

All went as plan but now

Server build is Version 15.1 ‎(Build 2308.8)
Exchange forest Schema Version = 15334
Exchange domain Schema Version 13241

Nothing in logs showing issues and all service look to be OK

BUT

when I try to install

Security Update For Exchange Server 2016 CU21 (KB5007409) via windows update

I get this

Installation status: Failed

Error details: Code 8024002D

I download the file but when I run it from CMD , as administrator.

it can't find the MSI . I direct it to Install drive for CU 21 but I get this

149551-image.png

Reinstall CU didn't help

Any help would be appreciated

Dean

Exchange | Exchange Server | Management
{count} votes

6 answers

Sort by: Most helpful
  1. Amit Singh 5,306 Reputation points
    2021-11-16T04:36:19+00:00
    1 person found this answer helpful.

  2. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-11-15T20:42:45.143+00:00

    Can you verify that you downloaded the SU from:
    https://www.microsoft.com/en-us/download/details.aspx?id=103645

    Be sure to reboot the server before trying the manual install.


  3. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-11-16T13:21:44.22+00:00

    Can you run the health checker? See what build it reports and any installed Security Updates?

    https://microsoft.github.io/CSS-Exchange/Diagnostics/HealthChecker/


  4. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-11-16T14:36:23.757+00:00

    Yea, its right there:
    Exchange IU or Security Hotfix Detected.
    Security Update for Exchange Server 2016 Cumulative Update 20 (KB5003435)
    Security Update for Exchange Server 2016 Cumulative Update 20 (KB5004779)

    when prompted for the msi does it work if you browse to the setup files where Exch is installed? Versus where the Cu21 setup program is?

    Also, is the only server you have seen this on? Looks like you have more than one


  5. Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
    2021-11-16T19:06:32.613+00:00

    Never seen that and the only fix I can find is:
    http://jurgenvm.blogspot.com/2016/10/installing-update-rollup-21-for.html

    No idea if that will fix it though or if you want to even attempt that.

    0 comments No comments

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.