Cleanup and reset

Always clean Azure first, then the VM. If you delete the VM first, the Arc resource stays in Azure as a disconnected "ghost" server.

1. Remove the server from Azure Arc (on the VM, PowerShell as administrator):

azcmagent disconnect

Sign in when prompted. This deletes the Arc resource in Azure and disconnects the agent. Then delete your resource group rg-presales-<yourname> in the portal.

Deleting the resource group also removes your Log Analytics workspace, your DCRs and the policy assignment from Lab 4. The instructor then turns Defender for Servers off in Defender for Cloud > Environment settings, so billing stops after the session.

2. Rebuild the VM (instructor, on the Hyper-V host). This gives a clean, AVMA-activated VM in a few minutes:

.\scripts\Remove-LabVM.ps1 -Name WS25-VM03
.\scripts\New-WS2025LabVMs.ps1

Remove-LabVM.ps1 deletes the VM, its disks and its folder, but never the template. New-WS2025LabVMs.ps1 recreates only the missing VMs from the template.