Forum Discussion

Roelknippen's avatar
Roelknippen
Copper Contributor
Mar 02, 2023

Error during installation CU23 on single exchange 2016 server

Hi,   I'am doing an upgrade of tot CU23 on a exchange 2016 server and during the update I am getting the following error:   Error: The following error was generated when "$error.Clear(); ."$Rol...
2016
Exchange Server
LunaScott's avatar
LunaScott
Iron Contributor
Apr 05, 2025

You can try the following steps hopefully they will help you 
1. Do these basic checks first 
Restart the server 
 Turn off your antivirus software 
 Run the installation with administrator privileges (right-click on the installer → “Run as administrator”) 
2. Install the necessary components 
 Make sure you have installed: 
.NET Framework 4.8 
Visual C++ Redistributable 
Run the following commands to install Windows features: 
powershell 
Install-WindowsFeature RSAT-ADDS, NET-Framework-45-Features, Web-Mgmt-Console 
3. Update the AD schema manually (if errors are reported) 
powershell 
. \Setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms 
4. Formal installation CU23 
cmd 
. \Setup.exe /Mode:Upgrade /IAcceptExchangeServerLicenseTerms 
5. Quick Check of Common Errors 
Error 0x80070643 → Uninstall the old version of Visual C++ and reinstall the latest version.
PendingReboot → Restart the server and try again.
Permission problem → Install with Enterprise Admins group account. 
6. After installation verify 
powershell 
Get-ExchangeServer | Select Name, AdminDisplayVersion 
should show Version 15.1 (Build 2507.6).
If it still fails → Collect logs from C:\ExchangeSetupLogs and contact Microsoft Support.