env WINEPREFIX="/home/linux/.wineinstance1" wine env WINEPREFIX="/home/linux/.wineinstance2" wine env WINEPREFIX="/home/linux/.wineinstance3" wine How do I ensure that instance3 is not running? Turn it off and on? i.e. install risky software on trial - but then turn off the instance until next time it is needed for testing? i.e conserve resources by stopping the OS instance. I guess it does not use much until you run an app in that instance after a boot up - but the dotnet stuff is an added risk I guess it is easy to delete the instance but can it be turned off?