VirtualBox is a free and open-source virtualization software that allows users to create and run virtual machines on their computers. With VirtualBox, users can install and run multiple operating systems simultaneously on their computer without having to create separate partitions or buy additional hardware.

one of the main advantages of VirtualBox is its ease of use. It is simple to install and set up, even for those who have little or no experience with virtualization technology. VirtualBox also offers a wide range of customization options, including the ability to adjust the amount of RAM, CPU cores, and hard disk space allocated to each virtual machine.

Another great feature of VirtualBox is its compatibility with a wide range of operating systems. Users can install and run Windows, Linux, macOS, and many other operating systems on their virtual machines. This makes it an excellent tool for developers, software testers, and anyone who needs to run multiple operating systems on a single computer.

VirtualBox also offers a range of advanced features, such as support for USB devices, shared folders, and network adapters. These features make it possible to run software that requires hardware or network resources, such as virtual routers, firewalls, and servers.

VirtualBox is an excellent choice for anyone who needs to run multiple operating systems on a single computer. Its ease of use, wide range of customization options, and compatibility with many different operating systems make it a versatile and powerful tool for developers, IT professionals, and home users alike.

Key Feature:

• Cross-platform compatibility.
• Intuitive graphical user interface.
• Support for various operating systems.
• Seamless integration with host operating system.
• Snapshots and clones.
• Networking capabilities.
• Virtual device support.
• Extension packs for additional functionality.

• VMM: more work on improving the emulation of certain MSR registers on certain host CPUs
• VMM: fixed single-stepping for real-mode guests (VT-x without unrestricted guest execution) and some I/O instructions
• VMM: fixed a potential problem with COW pages if nested paging is not available
• GUI: Mac OS X: experimental native full screen support for Mountain Lion and Mavericks
• GUI: Mac OS X: removed the mini-toolbar minimize button which doesn't work under Mac OS X full screen mode anyway
• GUI: experimental HID LEDs synchronization for Windows and Mac OS X hosts: fixed keyboard re-synchronization if the feature is disabled (as done by default)
• GUI: fixed a potential crash when opening the preferences menu
• OVF: fixed a crash of the VirtualBox Manager when re-starting guest export
• 3D support: several fixes
• HGCM: fixed a problem with saved states which could cause several guest misbehavior after a VM was started from a saved state
• Storage: fixed a bug preventing to compact differential snapshots under certain conditions
• VBoxSVC: fixed a segmentation fault on Linux hosts if a very long path exists under /dev
• API: fixed guest misbehavior under certain conditions if a storage medium was attached or removed at VM runtime
• Windows installer: make the --silent parameter work again
• Mac OS X Networking: prevent local traffic (VM-to/from-host) from leaking to wire
• Windows Additions: fixed the environment for guest processes (4.3.8 regression)
• Windows Additions/WDDM: fixed divide by zero exception with multiple guest screens under certain conditions
• Linux Additions: install correctly on Ubuntu guest systems with a /usr/lib64 directory
• X11 Additions: fix for the VBoxClient process not exiting correctly and consuming too much processor time