# Changing Virtual Machine Configuration While in Use

Parallels Desktop allows you to connect or disconnect certain devices at runtime or switch some of them to use other media. Generally, the following virtual devices can be connected or disconnected at runtime:

* Removable media drives
* Network adapters
* Sound devices
* USB devices
* Shared folders

If parallel and serial ports are present in the virtual machine configuration, you can also manage them on the go. To configure any of these devices, use the necessary command from the **Devices** menu in the menu bar. This menu is available only when the virtual machine is running.

### Connecting a Removable Media Drive

If you have several CD/DVD drives connected to your virtual machine, in the **Devices** menu they are listed in the same order as they were connected. The first CD/DVD drive will be **CD/DVD 1**, the second will be **CD/DVD 2**, and so on.

### Connecting a Network Adapter

You can set up any of the three network modes: Shared Networking, Bridged Networking, or Host-Only Networking.

### Connecting a Sound Device

To connect or disconnect a sound device, choose the type of output (or input) device or **Mute** option respectively.

### Connecting a USB Device

Parallels Desktop automatically detects all USB devices plugged into your Mac computer. The devices that are currently connected to the virtual machine appear in the list from the **Device** menu. You cannot use a USB device in macOS while it is being used by the virtual machine.

### Connecting a Shared Folder

The Shared Folders options available at runtime are similar to the settings in the **Virtual Machine Configuration** dialog.

You can:

* share all Mac disks or Home Folder only with the virtual machine;
* share Windows guest operating system disks with macOS;
* add a new shared folder.

### Connecting a Serial Port

To connect or disconnect a serial port, click the **Devices** menu, select the corresponding serial port, and choose the appropriate command in the displayed menu.

### Connecting a Printer

To connect to a printer or an output file, click the **Devices > Printer** menu, select your preferred printer, or choose to print to a file.


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