Customize VM

I have to customize the network settings of Virtual Machine, from bridge to sharing.
I don't know as I have done in the past but now when I stop the VM the window closes itself.

How do I have to do for stopping virtual machine and not closing the window?

 

Start Parallels from /Applications/Parallels/Parallels.app instead of the alias to the VM.

 

I cannot select the "Shared networking"!!!! It's disabled, why?

 

I suppose you either turned off Parallels NAT adapter in System Preferences - Network, or it is not present in there, such situation also may be caused if there are several Network Locations, and configuration is corrupted

 

I don't know anything...I power off my mac. After the next power on..the shared setting was enabled. I think that the settings were corrupted.