Today we are re-releasing the November 2024 SUs for Exchange Server. The original release of these SUs (released on 11/12/2024) introduced an issue with Exchange Server transport rules stopping after...
Updated Jan 28, 2025
Version 11.0
Blog Post
Nino_Bilic
Microsoft
MicrosoftSorry to say, I am not sure that I found anything useful. I found nothing related to specifically this SU, and everything I see indicates that there might be some sort of Windows Update issue on the machine. Note that our updates DO plug into the regular Windows update process / engine (they are .msp files underneath it all) so if there is some sort of issue related to update state on the server, that could explain it. My suggestion is to try running both Setup Assist https://aka.ms/ExSetupAssist (which is not really for SUs but might show if there was a Setup issue before) and Health Checker https://aka.ms/ExchangeHealthChecker .
Hello, I have the same issue as the others in 2 different environments too.
- OS: W2019 ENG (v1809, 17763.6775), EXCH: 2019 ENG (v15.02.1544.011), 2015-01 OS updates installed, 2 nodes DAG, 1st node no issue, 2nd node: ERROR: While installing the Exchange Server Update, error 1603 occurred.
- OS: W2016 ENG (v1607, 14313.7699), EXCH: 2016 ENG (v15.01.2507.039), 2015-01 OS updates installed, single exchange server, same error: ERROR: While installing the Exchange Server Update, error 1603 occurred.
It's not possible to remove all 2025-01 OS updates so I can't install this SU successfully. Is it worth to open an MS case or just wait maybe you can reproduce this issue and provide any fix later?
- Nino_Bilic
I just updated the blog post with our current understanding of the failure (we did reproduce this). The issue seems to be related to January .NET update having been installed, but the server was not rebooted after installation was completed.
- LukasSMSFT
We don’t think that the issue is caused by the SU itself. However, this is still under investigation. If you have a chance to open a case with us, that would be great. Please share the case number with me via PM.
