It is equally important to note that when examining the need to recover deleted files Windows run computers are certainly not alone in the need for data recovery assistance. Computers running on Linux or MAC OS X are just as likely to need assistance. When discussing the need to recover deleted files Windows, Linux and MAC OS X are operating systems called into question. The relative reliability of the hardware these systems run on is not at issue here. The key consideration is that files can be lost on any OS. It should be further noted that No operating system is more immune to a virus than the next.