Read the doc, and let it do a "deep clean".

Advanced system care free not only cleans, but does a vulnarability check and lots more to get a system back up to speed.

I use the option, Scan - repair - shutdown almost every night ( on all my 6 systems from XP to Win7)

I also use Iobit Malware fighter
And their Smartdefrag tool that also has a boot defrag option.

Happy Posering

Poser 1, 2, 3, 4, 5, 7, P8 and PPro2010, P9 and PP2012, P10 and PP2014 Game Dev
"Do not drive faster then your angel can fly"!