I built my mom a moderate Windows PC for her accounting work a few years ago. Pretty standard Intel build, no graphics card cause it's not like she needs that.

And for the most part it works fine, until every few months it'll slow down to an unusably slow crawl and I'll have to hop into task manager, see what rogue Windows service is bugging out this time, Google it, and find some forum post somewhere telling me what registry edit I have to do to disable some service that restores it to full speed.