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General Access Denied error (0x80070005) in Hyper-V Manager when starting VM

I ran into the following error when I tried to start a VM in Hyper-V Manager recently:

To solve this issue I had to grant Full control to the folder containing all the VM’s files (Virtual Hard Disks, config,…) using the following command:

icacls <VM directory> /grant “NT VIRTUAL MACHINEBA74464-10AF-4709-AAE9-4C1B196C08ED”:(OI)(CI)F /t

After executing this command you can verify if it was successful by checking the Security properties of the directory where the VM files are located through Windows Explorer. The user that corresponds with the Virtual machine ID in the error message should have Full control of the folder where the VM files are located.

Author: Kristof Lievens

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