Sluggish Computer

Yesterday Andy cleaned up my computer. It had become really slow and I was beginning to feel frustrated with it. He removed the spyware and the things that I no longer need that were running quietly in the background. I deleted a few things that I had backed up and didn't need to access very often. We defragged and he did other computer type things I have no idea about. It took all day nearly. I was quite irritable by then.
I wonder about people who have no Andy to watch over their computers. I have seen friends computers who are just crawling along, totally laden with all sorts of surplus programs. Less is More.