Defrag and registry cleaner advice?

[firehawk]

What do you guys think about these recommended defrag and registry cleaners (Auslogics)?
https://www.studio1productions.com/Articles/Software-1.htm
I think it's time to do a better cleanup on my workstation's drives

 

[TheDingo]

I've been very happy with the free apps from Piriform that I've been using for 5+ years... CCleaner is a godsend.