Source: http://www.virus.gr
The newest method of protection against malware is called Sandboxing.
This method uses a secure space within the hard disk (sandbox), within
which all files downloaded from the internet, including viruses, are
stored-and executed- safely. In a few words, even if a file is
infected, it is not allowed to infect the operating system, only the
secure space. After a reboot this space can be restored to its original
status and all changes made by the virus are ERASED.
The disadvantage of this method is that it is not familiar nor
easy-to-use for most novice users, at least not as the "traditional"
antivirus and anti-spyware programs.
Its advantages are that it needs no updating like "traditional"
antivirus and anti-spyware programs plus the fact that if configured
properly, it makes the operating system completely secure against
anything downloaded from the internet.
The Sandboxing method is used by the freeware programs
Sandboxing differs from the "classic" Virtualization of VMWare and VirtualPC because the user does not need to create another virtual operating system in the hard disk. Nevertheless, many VMWare and VirtualPC
fans insist on using them -instead of Sandboxing- mainly because they
can use their exact virtual operating system ever after the main
operating system gets erased or upgraded.