Before ASM Virtual Machines can be managed and operated via WebUI options, the VM instances must be created on the ASM using Microsoft Hyper-V. See PreRequisites - Managing the VM.
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Important Notes
Any modifications to the VM via Microsoft Hyper-V are displayed automatically in the WebUI.
ASM VM Management is supported on the High-End ASM and Low-End ASM versions. For hardware details, see Common Hardware Modules.