To use this feature, install VirtualBox’s Guest Additions package inside the virtual machine, select the View menu, and click Switch to Seamless Mode. For example, if you use VirtualBox to run an important Windows program on your Linux desktop, you can use Seamless mode to have that Windows program be present on your Linux desktop. Seamless mode allows you to break windows out of your guest operating system window and place them on your host operating system’s desktop. RELATED: Use VirtualBox's Seamless Mode or VMware's Unity Mode to Seamlessly Run Programs From a Virtual Machine You don’t have to reinstall your guest operating system or manually back up and restore a virtual machine’s files. When you’re done, you can restore the original snapshot and all traces of the software will be erased.

For example, if you use a virtual machine to test software, you can create a snapshot of a clean Windows system, then install the software and play with it. Snapshots are particularly useful if you want to do something to a virtual machine and then erase your changes.

How to use virtualbox on windows 10