Categories: FAQsYou try to delete a VM client from the Hyper-V Manager, but it fails. It says: "An error occurred while attempting to delete the virtual machine". What should you do? Open Events Viewer (Custom Views -> Roles -> Hyper-V). You will see a list of errors. Take note of the Virtual Machine ID of the latest error where the event source is Hyper-V-VMMS. Open Windows Explorer. Navigate to the path %systemroot%\ProgramData\Microsoft\Windows\Hyper-V\Virtual Machines (Note: "ProgramData" is a hidden folder. Use Control Panel -> Folder Options ->(Read more...)