There used to be stickies (I recall) where you ran a program that showed all your running processes. And then someone would analyze that and suggest what could be cleaned up. Am I just not seeing it?

My system is running really slow. I've done the standard things (disk clean, defrag, anti-spyware) to no avail. My disk usage is just under 15%. Running Win 10 on an HP laptop. Non geek here, so simple is best. Assistance appreciated.