I just did a clean install of Mac OS X 10.10 (Yosemite) in my Macbook Air. Before installing 10.10, I erased the whole SSD and installed 10.10 from the web using Recovery Tools. And after the installation I signed in with my Apple ID. To my surprise, all the previous system settings from 10.9.4 are synced with 10.10 as well.
Is there a way to get back all the default system settings?
Best Answer
Resetting the preferences of a single application is described in the article
How to reset an App’s Preferences :