To install an operating system, a virtual machine can use an emulated PXE boot ROM (Read-Only Memory).
PXE is a network booting environment that uses a pre-boot execution environment. With 128-bit or 256-bit data encryption keys, the XTS encryption mode is employed. As a result, even if the VM is copied from secured storage to another place, the data is encrypted. For a guest OS, data saved on virtual disk images can be encrypted transparently. The AES technique is used to encrypt disk images. To utilize this function, you must be connected to a host machine. Even if you can't connect directly to a virtual machine, you can use the VirtualBox interface to operate it remotely (for example, if the virtual network of a VM is not configured properly or disabled). Remote Desktop Protocol for VirtualBox (VRDP). The Host webcam pass-through capability allows you to utilize this camera on a macOS-based VM (despite the fact that this webcam is not supported on macOS and there are no macOS drivers for this webcam). Assume you're utilizing a camera on a Windows-based host computer (you have all official Windows drivers for the webcam). The benefit is that you can utilize a camera that your VM's guest operating system does not support. Pass-through webcam hosting You may use this function to link your host webcam to a visitor computer. If you try to activate USB 3.0 support in the VM settings (Machine > Settings > USB) without having VirtualBox Extension Pack installed, you will see the error message – Invalid settings detected.
As a consequence, a physical USB device can be used in a guest operating system (OS).
USB devices placed into physical USB ports of a host system, such as network adapters, flash drives, hard disks, webcams, and so on, can be joined to a virtual machine operating on VirtualBox. USB 2.0 and USB 3.0 devices are supported. The Extension pack includes the following features: VirtualBox Extension Pack is a binary package that extends VirtualBox's capability.
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