Uninstalling the ConfigMgr (MECM / MEMCM / SCCM) client, can be as simple as running this command with administrative rights
But when you need to cleanup ALL of the remnants of the ConfigMgr client there’s a bit more work to do.
One example is when you are moving from a Co-Managed state to a native Intune managed state. The ConfigMgr client uninstaller may need some extra help to get enough references deleted so the Windows OMA-DM “service” and the Intune Management Extension (IME) service accept that the device is no longer Co-Managed.
Behold the power of, um, PowerShell.
The full and latest code can be obtained from GitHub. https://github.com/ChadSimmons/Scripts/blob/default/ConfigMgr/Troubleshooting/Remove-ConfigMgrClient.ps1
#.SYNOPSIS # Remove-ConfigMgrClient.ps1 # run ConfigMgr's uninstall command and cleanup leftover files, registry keys, and certificates # Stop Services and wait for exit Write-LogMessage -Message 'Stopping ConfigMgr services ccmsetup, ccmexec, smstsmgr, cmrcservice' Stop-Service -Name ccmsetup -Force -ErrorAction SilentlyContinue ... # Preserve CMTrace.exe log file viewer ... Copy-Item -Path "$env:SystemRoot\CCM\CMTrace.exe" -Destination $env:SystemRoot -ErrorAction SilentlyContinue ... # Backup ConfigMgr Client logs Write-LogMessage -Message "Archiving ConfigMgr Client logs to [$(""$env:SystemRoot\Logs"")] before uninstalling" ... [System.IO.Compression.ZipFile]::CreateFromDirectory("$TempPath", "$env:SystemRoot\Logs\ConfigMgrClient.zip", $([System.IO.Compression.CompressionLevel]::Optimal), $false) ... # Run ConfigMgr client uninstall # Get the path to ConfigMgr client's installer/uninstaller ... Start-Process -FilePath "$CCMSetupPath" -ArgumentList '/uninstall' -NoNewWindow #-Verb RunAs #-Wait ... # Remove leftover folders and files ...