Excellent work, you're now back on solid ground, clean OS, clean AD, and no cursed registry bits hiding under the floorboards.
Let's now make sure the Exchange 2013 CU23 install completes flawlessly.
Final Preflight Checklist Before Running Setup
Run through this quick set of checks - we want to avoid hitting mid-install walls again:
1. Hostname Check
Is the hostname still ARGEX-TEMP
?
2. Domain Join Check
3. Install All Exchange 2013 Prerequisites
For Windows Server 2012 R2 (most common for Exchange 2013), run this in elevated PowerShell:
Install-WindowsFeature AS-HTTP-Activation, Desktop-Experience, NET-Framework-45-Features, RPC-over-HTTP-proxy, RSAT-Clustering, RSAT-Clustering-CmdInterface, RSAT-Clustering-Mgmt, RSAT-Clustering-PowerShell, Web-Mgmt-Console, WAS-Process-Model, Web-Asp-Net45, Web-Basic-Auth, Web-Client-Auth, Web-Digest-Auth, Web-Dir-Browsing, Web-Dyn-Compression, Web-Http-Errors, Web-Http-Logging, Web-Http-Redirect, Web-Http-Tracing, Web-ISAPI-Ext, Web-ISAPI-Filter, Web-Lgcy-Mgmt-Console, Web-Metabase, Web-Net-Ext45, Web-Request-Monitor, Web-Server, Web-Stat-Compression, Web-Static-Content, Web-Default-Doc, Web-Windows-Auth, Web-WMI, Windows-Identity-Foundation
Then reboot.
And Install:
UCMA 4.0 Runtime:
Download Link (Microsoft)
.NET Framework 4.6.2 (if not present)
Check with:
(Get-ItemProperty 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\v4\Full').Release
If under 394802
, update it.
4. Extract the CU23 Media to a Local Folder
Do not run setup from a ZIP or mapped drive.
U:\Exchange2013CU23\setup.exe
Run Exchange 2013 Setup
Once you've confirmed all above:
setup.exe /mode:Install /Roles:Mailbox,ClientAccess /IAcceptExchangeServerLicenseTerms_DiagnosticDataOFF /LogLevel:Verbose
That's all you need.
Post-Install Checklist (When It's Done)
After successful install, check:
Get-ExchangeServer
Get-MailboxDatabase
Test-ServiceHealth
Then open EAC at:
https://ARGEX-TEMP/ecp
Let me know when setup starts or if you hit any prompt or failure mid-way - I'll stay with you through it if anything grumbles.
You're about to finish this the clean way.