HT201364: OS X Mavericks system requirements
Learn about OS X Mavericks system requirements
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All replies
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Helpful answers
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Mar 31, 2015 8:26 AM in response to JWM FM FLby Kurt Lang,Restore the backup you made before upgrading, or erase the drive and reinstall Mavericks, your third party apps and personal data from scratch. You can't just install Mavericks over Yosemite.
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Mar 31, 2015 8:24 AM in response to JWM FM FLby Allan Eckert,Erase the disk drive and restore the backup taken prior to the upgrade.
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Mar 31, 2015 9:25 AM in response to JWM FM FLby Eric Root,Do a backup, preferably 2 separate ones on 2 separate drives.
Revert to a Previous OS X - Yosemite
If you do revert, I'd use Setup Assistant to restore your data. This process takes a while, so do it when you won't need the computer for several hours, based on my experience.