ivmvirtualmachine-discardundodisks.md

title	description	ms.assetid	keywords	topic_type	api_name	api_location	api_type	ms.topic	ms.date
IVMVirtualMachine DiscardUndoDisks method (VPCCOMInterfaces.h)	Discards the virtual undo disks.	5c3a4b3f-ea58-498c-b7cf-54f028fa061c	DiscardUndoDisks method Virtual PC DiscardUndoDisks method Virtual PC , IVMVirtualMachine interface IVMVirtualMachine interface Virtual PC , DiscardUndoDisks method	apiref	IVMVirtualMachine.DiscardUndoDisks	VPCCOMInterfaces.h	COM	reference	05/31/2018

IVMVirtualMachine::DiscardUndoDisks method

[Windows Virtual PC is no longer available for use as of Windows 8. Instead, use the Hyper-V WMI provider (V2).]

Discards the virtual undo disks.

Syntax

HRESULT DiscardUndoDisks();

Parameters

This method has no parameters.

Return value

This method can return one of these values.

Return code/value	Description
S_OK 0	The operation was successful.
VM_E_VM_UNKNOWN 0xA0040207	The configuration is unknown.
VM_E_VM_RUNNING_OR_SAVED 0xA004020B	The virtual undo disks cannot be discarded while the virtual machine is running or in a saved state.
DISP_E_EXCEPTION 0x80020009	An unexpected error has occurred.

Requirements

Requirement	Value
Minimum supported client	Windows 7 [desktop apps only]
Minimum supported server	None supported
End of client support	Windows 7
Product	Windows Virtual PC
Header	VPCCOMInterfaces.h
IID	IID_IVMVirtualMachine is defined as f7092aa1-33ed-4f78-a59f-c00adfc2edd7

See also

IVMVirtualMachine