Hi! I have Macbook Pro 13" mid 2010 (2x 2GB RAM) that has become very slow. Based on these forums and other articles, I've tried a lot of things, without much results. I will try to describe the issue, and would be forever thankful for any further ideas It started running slow some time after Mavericks was introduced, though it didn't seem like upgrading to Mavericks was the problem. It takes a lot of time to open applications, of course longer time the heavier the application, and it can't handle a lot of programs running at once. I can't see anything in particular on the activity monitor that takes a lot of the CPU. This is what I have tried so far: - Freed hard drive space (now 50 GB free out of 250 GB capacity). - Cleared the dashboard widgets - Upgraded to Yosemite - Repaired disk permissions and disk - When repairing disk, I got a message saying I had to reformat, and so I did that and reinstalled Yosemite. When I had a clean mac after the reformatting, it definately performed better, but not as good as new. As soon as I put all my backed up files in again, it became slow again. I feel these things have helped a bit, but it's way too slow, still. Anything else I can try? I could insert more RAM, but it doesn't seem like that's the problem, when I can reboot the mac, have no programs running, and still see it taking forever to open for example safari. Thanks!