How can you get OS Lion back if you already downloaded Mavericks?  I CANNOT live with the battery life of 2 hours!!  HELP

How can you get OS Lion back if you already downloaded Mavericks?  I CANNOT live with the battery life of 2 hours!!  HELP

Kappy wrote:
Don't downgrade OS X without first erasing the drive. You cannot restore a Time Machine backup of Lion directly on top of a later version of OS X such as Mountain Lion or Mavericks.
When you "Restore from a Time Machine Backup.", the drive will be erased for you, but yes, won't hurt to:
Boot into Recovery (hold ⌘R on boot)
Utility->Disk Utility->Erase Macintosh HD, then Repair Macintosh HD
Quit Disk Utility
Then Select: Restore from a Time Machine Backup.

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