You may have encountered an error when opening a VMware virtual machine that says failed to connect pipe to the virtual machine. There are various instances of this ...
It is the first thing you need to fix the issue as stated above. For that, you need to run the virtual machine showing the error and go to the Devices > Install Guest ...
One of the things I have always found handy about Hyper-V is the ability to mount a non-running virtual machine's (VM's) virtual hard disk in the host operating system. This probably isn't something ...