File repair, Scans a damaged file and extracts the maximum data from it to create a new, usable file., Disk defragmenter, Optimises the use of the hard disk space by collecting together the separate parts of each file in one location on the disk., Anti-spyware, Detects programs that secretly record what you are doing on your computer, and prevents them from installing themselves., Compression, Reduces the size of a file so that it can be sent as an email attachment., Anti-virus, Prevents harmful programs being installed and important files being changed., Automatic update, Regularly checks on the internet for patches or newer versions of software and installs it..

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