Here is the full uninstall process for EN Mac: Goto Evernote Mac > About Evernote Hold down the OPTION key to reveal the “Open Database Folder” link Click on this link to open the Mac Finder to this folder QUIT Evernote, both the App and from the Apple menu (if it is still there) In the Mac Applications folder, move the Evernote app to Trash. The Finder is showing the EN data folder for the current EN account that you are logged in to on your Mac In the Finder, move back to the “Evernote” folder. Backup this “Evernote” folder, either by a copy to another location (preferably to an external drive), or using Time Machine When you are SURE you have a good backup, delete (move to Trash) the “Evernote” folder. Note that this is removing EN Mac for ALL EN Accounts. If you want to make sure that Evernote has been completely removed from your Mac, you can use a 3rd party app like AppDelete Just make sure it does NOT remove your EN backup made in Step #8. At this point Evernote (App and data) for ALL EN Accounts should be completely removed from your Mac. Although not absolutely necessary, I like to reboot my Mac at this point. You are now ready to install the version of EN Mac that you want.