7 Replies Latest reply: Feb 6, 2013 10:54 PM by Magic Song
Magic Song Level 1 Level 1

Recently found my iMac boot up speed is getting slow, so i reinstall Lion from Recovery HD, after about 4 hours reinstallation, it still the same as it was, can anybody tell me how to get back to the manufactory setup.

iMac, Mac OS X (10.7)
Solved by Niel on Feb 6, 2013 9:47 PM Solved

Once you've opened the Disk Utility, click on the regular partition in the sidebar, not the drive, click on the Erase tab, and erase it.



Reply by Niel on Feb 6, 2013 9:28 PM Helpful

Use the Disk Utility on the recovery partition to erase the drive, and then reinstall.



Reply by Niel on Feb 6, 2013 10:11 PM Helpful

You need to do it when started from the recovery partition and not the one with Mac OS X installed.



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