Microsoft Security Essentials
Ccleaner
Advanced System Care pro (the only one I payed for)
Glary utilities,

all once a day.

And Malwarebytes from time to time.

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"!