So when the computers upgraded to Yosemite in October, what happens if you want mountain lion back or you want the software before this upgrade?
i have downgraded yosemite to mavericks before but i highly recommend against downgrading newer model macs os because you will take a performance hit.
I want mavericks back so bad i hate the appearance of my icons and stuff it sucks! I have an older version of mac, I have the one with the cd rom
well you can downgrade but you will see a performance hit. if it is just the icons that you don't like you can always just change the icons and keep the OS
Before you updated to yoshmite you should of backed up to an externel using time machine. This will allow you to go back to what you perviously had. Keep this in mind incase another update comes out.
Yosemite it not bad you just have to get used to it. El Capitain will be available soon maybe you will like that theme better