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Any sort of maintenance software is merely snake oil (bull crap). None of these programs which are out there you need. No pc needs them. Except for CCleaner. Windows does everything itself. Defrag and other things. NEVER ever install anything like a registry cleaner/ optimizer or a tuneup program. If you want to keep your pc protected then only use well known names:

Norton, Kapersky, Avira, BitDefender, AVG, Avast, Panda, Emsisoft, F-Secure and Eset