"TuneUp Utilities" has many functions to better functioning of the PC. Already enables automatic maintenance daily maintenance shaped my pc. This product is also valid for clean temporary files, defrag, faster boot, change the appearance of Windows. It searches and corrects errors on the hard disk, problems with the registry (make a backup before often automatic way) defrags, etc. In short it is a tool that seems essential to optimize the operation of pc.C'est really useful to increase PC performance, I do not know if there Mac.Il to restore data deleted by mistake. It's a real Swiss Army knife.