Its time to give a big hand to the CCleaner and Piriform team at the end of the year.
I have been using CCleaner for more than five years and its a trustworthy and hassle-free tool.
I request that you may please add virus scan and other anti-virus features in addition to the base functionality for additional cost for pro version.
It may be big leap forward and definitely needs lot more of undertaking but it will be worth it in the long run.
Best wishes
Sartaj Alam