O&O Software has unveiled O&O ToolBox 21 - a collection of four programs that will keep your PC in tip-top condition and ensure your completely erase personal data.

Priced at £49, O&O ToolBox 21 features O&O Defrag 11 Professional Edition, which O&O says optimises hard disks and merges data fragments twice as quickly as the previous version, as well as O&O CleverCache 6 Professional Edition to increase a PC's performance by managing the file cache.

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Users will also benefit from O&O DiskStat 1 Professional Edition that allows users to locate files taking up too much space on a PC and O&O SafeErase 3, which allows files, directories, partitions and even free space on the hard drive to be completely deleted ensuring data once stored on the drive can never be recovered.

O&O Toolbox 21 is available from the O&O software website, priced at £49.99.