The March 2015 update of Apple's 13" MacBook Pro Retina Display, model A1502, features fifth-generation Intel Core i5 and i7 processors and introduces the Force Touch trackpad.

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Slow Start Up after Yosemite Update (not upgrade)

Hi I recently bought a new MacBook Pro 13inch (Early 2015)

I just updated the Yosemite OS X and my Mac has become slow in starting up. Before the update it was like just 2 seconds or so. Now its like half a minute (22 to 30 seconds).

  • How do I fix this?
  • Can I role back the update?

Here are the details of the update:

Remote Desktop Client Update (Version 3.8.2v1.1)

OS X Yosemite Recovery Update (Version 1.0)

OS X Update (Version 10.10.3)

iTunes (Version 12.1.12)

Digital Camera RAW Compatibility Update (Version 6.03)

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You'll need to boot up on an external bootable drive so you can repair your internal disk. Use Disk Utility from the external drive to run repair permissions and disk.

You should also free up some space on it as well here. Get rid of any old files you don't need or have backups of. There are some deeper cleaning apps you can use to delete log & cache files that could be choking your system up as well.

The very last thing here which we do yearly is defragment the hard drive (not SSD units). Over time your OS files get fragmented as each update extends them to other parts of the disk which then slows the system. But before you defrag the disk make sure to get rid of the junk first!

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Actually the problem is fixed. I had to go to Disk Utility, select my default HD & restart, & it was solved.

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