Homelab/Windows server
Exchange Server update
apply lastest exchange server CU
Edit on GitHub
check exchange server version
PS C:\Windows\system32> Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo} ProductVersion FileVersion FileName -------------- ----------- -------- 15.02.1748.010 15.02.1748.010 C:\Program Files\Microsoft\Exchange Server\V15\bin\ExSetup.exe Released: October 2025 Exchange Server Security Updates | Microsoft Community Hub
Exchange Server build numbers and release dates | Microsoft Learn
download and run the script HealthChecker - Microsoft - CSS-Exchange
download the latest SU Download Security Update for Exchange Server 2019 CU15 SU3 (KB5063221) from Official Microsoft Download Center
PS > C:\Users\exchange\Downloads\HealthChecker.ps1
PS > C:\Users\exchange\Downloads\Exchange2019-KB5063221-x64-en.exe
restart server and run to validate the version
Get-Command Exsetup.exe | ForEach-Object {$_.FileVersionInfo}
if it failed try this script to run all exchange server services Restart Exchange services with PowerShell script - ALI TAJRAN