windows 10 Pro + hyper-v で、 vagrant up –provider=hyperv としたところ、以下のエラー PS C:\workspaces\vm\centos7> vagrant up --provider=hyperv Bringing machine 'default' up with 'hyperv' provider... ==> default: Verifying Hyper-V is enabled... ==> default: Importing a Hyper-V instance default: Cloning virtual hard drive... default: Creating and registering the VM... An error occurred while executing a PowerShell