Personally I wouldn't bother using such 3rd party tools or utilities, most of them carry things like malware, adware or even viruses and even the ones that are more genuine still cause more problems than they solve.
It's better to give you PC a full spring clean, maybe every 1 or 2 years. Just using the built in Windows backup tool to backup all of your important data to an external device with an adequate capacity and then completely formatting your PC's hard drive and re-installing Windows and all of your programs from scratch is the only way to do the job right first time every time. This process will also rid your PC of any nasty viruses that may be residing on it far better than any virus scanning software could hope to imagine.