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It is not possible to go back to Mavericks right?

If you have updated to Yosemite, then no. You can restore from a backup (if you did one) or do a clean install.

You should of installed Yosemite on a separate partition.
 
If you have updated to Yosemite, then no. You can restore from a backup (if you did one) or do a clean install.

You should of installed Yosemite on a separate partition.

Ok thanks! I was just Curious just in case I ever faced a serious dilemma.
 
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