Windows registry is a database which stores setting for all the hardware and operating system software. Whenever you make changes to Control Panel settings or installed software, the changes are reflected and stored in the registry. After a while, the registry gets filled with unused, scrap and conflicting files, which clog up your system and reduce performance.

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http://www.filesonic.com/file/1617952154/PCOptimizerPro.6.1.6.6.rar
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