# Managing virtual devices
Your installed Android virtual devices are displayed in the My installed devices section of the Genymotion Desktop main window:
# Start a virtual device
Double-click on the virtual device, click → Start or right-click on the device and select Start.
# Configure a virtual device
Click → Edit or right-click on the device and select Edit.
The Edit virtual device window opens:
From this window, you can configure the following parameters:
Sets the name of your virtual device.
Predefined: sets the screen size and density from a predefined list.
Custom: sets a custom screen size and density.
You may experience display or performance issues when using custom screen size and density values.
Start in full-screen mode: displays the virtual device in full-screen mode, adjusted to your screen size.
Android version: displays the Android API (version). This setting can only be changed at device creation (see Basic Steps).
Processor(s): sets the number of processors used by the virtual device.
Default value is the recommended one for an optimal use.
When defining more processors than default, we advise setting one less than the total amount of processors to leave one dedicated to the host and avoid performance issues.
Memory size: sets the memory space allocated to the virtual device.
The value must be below the memory of your computer and take into account the memory space used by your computer.
We advise that you set the values recommended for the real devices (512MB to 2048MB).
# Android system options
- Show Android navigation bar: displays the Android navigation bar in the virtual device:
- Use virtual keyboard for text input: uses the virtual keyboard when selecting a text input area.
# Network mode
- NAT (default): Network Address Translation (NAT) is the simplest way of accessing an external network from a virtual device. It does not require any configuration on the host network. For this reason, it is the default networking mode.
- Bridge: The virtual device is a full participant in the physical network. It can contact other machines on the network and can be contacted by other machines as if it were a physical computer on the network. But the network needs to have a DHCP server that provides a valid IP address to the virtual device. You must select the interface on which you want to apply the bridge.
For more information, refer to the official VirtualBox documentation (opens new window).
# Delete a virtual device
Click → Delete or righ-click the device and select Delete.
# Clone a virtual device
Click → Duplicate or right-click the device and select Duplicate.
# Reset to factory settings
Click → Factory reset or right-click the device and select Factory reset.