Hi, Recently after installing windows update on Windows server 2016, I have come to a weird issue, I have exchange servers 2016 on CU15, due to recent vulnerabilities, I decide to upgrade it to CU19, however when I run the setup, the installation windows suddenly disappears on Organization Preparation 1- 18 steps, it does not throw any error on the screen, it just magically disappear basically, later I found out that it is not only with CU19, I even tried with other older CUs LIKE 16 or 17, it was the result.
I have tried to install via PowerShell and CMD the setup was failing on the Organization Preparation stage without throwing any error on the screen also i have tried to run the Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareSchema it completes successfully, however when I run Setup.exe /IAcceptExchangeServerLicenseTerms /PrepareAD, it does not and it does not show any error too.
, ![75504-set.jpg] : /answers/storage/attachments/75504-set.jpg
the installation is attached below.