I had two MacBook Pros, both 13" models from late 2011. One had 4 gigs of RAM, and the other 8. Both of them were intolerably slow. In the first case, I wound up installing CleanMyMac , which did arcane things to various files, and put up alerts to warn me about disappearing memory. But it made the machine useable again, albeit not exactly speedy. I changed some habits: Safari as browser rather than Firefox or Chrome. I tried to keep tabs down to four or five. The second Mac had bigger problems. Its charger was shot, but even with that replaced, the battery tapped out at 75%. More importantly, the whole disk had been wiped, which meant that it wouldn't boot. Recently, I had downloaded a couple of Linux distributions ("distros") on USB drives. Elementary OS 5.1 (Hera) was reputed to be a lightweight, beautiful distro that shared some aesthetics with the Mac OS. So I thought I'd give it a try. Ahead of time, I tried to read up on how difficult it might be to