A couple of times I've noticed odd things happen on the Host caused by a VM even if the vNICs are not shared with the Host OS.

For example: If a VM is running Windows 7 and the Windows Easy Transfer Wizard is used, a drive letter is automatically mapped on the Host as a removable drive pointing to the vhdx hard disk of the VM.

How is that possible?

Never heart about that, have you install the tool on your host server same time?

Agreed.  Never seen that.  How are you connecting to the Windows 7 VM?  Have you logged into the host and then used RDP to connect to the VM or are you using RDP from a completely separate machine?

The Windows Easy Transfer tool was not installed or run on the Host

I don't remember if it was an RDP session into the Win 7 VM from a Windows 8.1 PC or from Hyper-V Manager. Either way I don't see how anything running on the VM could cause a removable drive to be mapped on the host. I thought that was impossible.

Hi BayTree,

Could you upload some snapshot about this issue, did you mount your VM disk some time, can you try to store the user profile data on others location but not network location, I think you must forget some previous  operation when you use this tool.

Best re

Hello Alex

Maybe I will try to do this in a lab and see if I can replicate the behaviour as I wouldn't want to do this in a production environment again.