The settings are in different folders. Some are in your user folder (it might be hidden) in the preferences: How to set preferences in Illustrator Others are in an application support folder (this is for Dreamweaver, just try and replace the Dw references by Illustrator): Locating your personal configuration folder There's also stuff in the application folder in a folder called "Support files" When migrating to the newer version I would first install the new version on top of the old one. You need to be careful when installing, because by default, old versions are wiped.
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