Backup and Recovery. Computers can store a great deal of information, and over time your PC may hold a lot of important, private, irreplaceable data such as digital photogra phs and movies, financial documents, emails, passwords and login details. It is of critical importance that you establish an appropriate method for regularly backing up this information, so that if your PC is stolen, damaged, or its data is corrupted or accidentally overwritten, that you do not lose all this valuable data permanently. Hence backing up is a vital and unavoidable part of sensible computing. In fact once you are sure that your system is completely free of malicious software, you should make at least one backup copy of all your important and irreplaceable documents before proceeding any further with this guide. This chapter not only covers various backup strategies and tools, it also covers a range of useful data recovery methods you can use to regain valuable information which ha s been lost thr...