Hyper-V: The application encountered an error while attempting to change the state of

Hello,

I got following error while creating a new VM and booting it through a DVD drive from Hyper-V.

The application encountered an error while attempting to change the state of <Virtual Machine>. <Virtual Machine> failed to start.

Microsoft Emulated IDE Controller (Instance ID {83F8638B-8DCA-4152-9EDA-2CA8B33039B4}): Failed to Power on with Error ‘The process cannot access the file because it is being used by another process.’

Failed to open attachment ‘D:’. Error: ‘The process cannot access the file because it is being used by another process.’

Resolution:

You must be working on multiple Virtual Machines… and same DVD drive is being used by more than one Virtual Machines. Remove the DVD/Virtual Drives from other Virtual Machines and Start the VM you are working on.

Done! Voila!

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