VirtualBox is a free virtualizer that extends your existing computer's capabilities so that it can run multiple operating systems in virtual machines at the same time. VirtualBox Extension Pack also available.

VirtualBox Extension Pack provides free new features to your VirtualBox virtualization app.

Sandboxie-Plus is a fork of Sandboxie designed to address various problems as well as adding improved functionality.

Sandboxie (Classic) lets you run programs in an isolated space, which will prevent them from making permanent changes to other programs and data on your computer. Sandboxie-Plus also available.

Tart is an advanced toolset designed for creating, operating, and maintaining virtual machines running macOS and Linux on Apple Silicon-based systems.

Bottles offers a user-friendly interface for running Windows software on Linux systems, utilizing WINE environments that include games and applications designed specifically for Windows.

4OS is a fast and friendly, desktop-oriented operating system based on Debian Linux and a Mac-like dock.

Desktop Noodle (dt_noodle) offers an unlimited number of virtual desktops, each equipped with its own designated folder. This software efficiently saves icon positions and adjusts to different screen resolutions.

If you run VMware Workstation, VMware Tools is the performance boost your virtual machines need on day one.

Orka Desktop lets you generate or procure personalized macOS images directly on your device.

Multipass provides a command-line interface to launch, manage, and utilize instances of Linux.

VMware Workstation allows you to run any virtual machine on their computer. Used by MajorGeeks to test software safely. Unlike VMWare Workstation Player this allows you to save and delete snapshots, additional tools, and more.

CyberLock can protect you from viruses using two different modes to "train" your computer to be protected at all times.

Enigma Virtual Box enables application files and registry to be consolidated in a single executable file without loss of efficiency and without virtualized files being extracted to the HDD.

VMware Player is an easy-to-use application that will offer users the possibility to run any virtual machine on their computer—used by MajorGeeks to test software safely.

Windows 95 brings you back to 1995, allowing you to run Windows 95 as a portable app without needing installation, partitioning, or dual booting. A video tutorial is available.

WinJump allows you to set a custom keyboard shortcut to jump between virtual desktops in Windows.

Windows Virtual Desktop Helper provides you with helpful features missing from the default virtual desktop.

Virtual-Desktop-Switcher allows you to open multiple desktop instances.

Microsoft Desktops allows you to organize your applications on up to four virtual desktops.

Disk2vhd is a utility that creates VHD (Virtual Hard Disk - Microsoft's Virtual Machine disk format) versions of physical disks for use in Microsoft Virtual PC or Microsoft Hyper-V virtual machines (VMs).

VirtuaWin is an easy-to-use virtual desktop manager with only essential features included.

Microsoft Defender Application Guard Companion not only provides an isolated Microsoft Edge browsing window but also allows browsers other than Microsoft Edge to work with it as well.

Phoenix OS is an Android based operating system that you can install on your hard drive or as a bootable DVD or thumb drive. Also available for 64-Bit here.

Phoenix OS is an Android-based operating system that you can install on your hard drive or as a bootable DVD or thumb drive. Also available as a executable here.