Anyone who frequently installs and uninstalls new software, tests beta versions of programs, or tinkers with the registry in Windows, often reaches the point where they have to completely re-install ...

Qubes OS defines itself modestly as “a reasonably secure operating system.” It might actually be one of the safest operating systems, often used by pros who are most concerned with computer security.

Virtual PCs have important uses, such as providing a dedicated environment for testing new applications or enabling the parallel operation of multiple operating systems. But the virtualization ...