Launching Windows
To use Windows applications on your Mac, your Windows virtual machine must be running.
The simplest way to start Windows is to open a Windows application. If Windows isn't already running when you open a Windows application, it starts automatically in Coherence mode.
You can also start Windows by doing the following:
Open Parallels Desktop.
In the Control Center, double-click on the Windows virtual machine.
Note: The Control Center lists all virtual machines that are registered in Parallels Desktop. If a virtual machine is stored on an external drive and it's not connected to your Mac, the virtual machine icon is displayed as a question mark (?). To start such a virtual machine, connect the external disk to the Mac.Click anywhere in the Windows window that appears.
Windows starts, and you can begin using Windows applications alongside macOS.