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Time required to initial boot my computer

I recently installed ther new Yosemite OX 10.10.4 operating system. First, it took forever to install. More importantly, now when I cold boot the computer, it takes twice as long before to get my regular screen and can start working.

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Yosemite is a pretty slow loading OS.

Could also be a hard drive issue.

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Not really! Its the lack of maintaining the HD thats the issue. Every time you upgrade the OS or must any app on your system the size of the files change, so over time they get fragmented. This happens more so when you have too little free space for the OS to lay the files down un-fragmented which it does try to do! We always encounter a slow system just after a OS or large app upgrade. But, once you clean things up the snap comes back! If you really want a zippy system upgrading to a SSHD or a SSD is a great way to gain boot up & running apps speed. This is were Apple's Fusion Drive direction makes sense as often we can't justify putting in a large SSD (big $$) so we find a mid point going with a SSHD or a second drive config with a smaller SSD working in conjunction with a HD (either as a Fusion Drive set or discretely a dual drive).


I assumed he fresh installed the OS but you may be right if its an upgrade situation.


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Hold on here! A slow booting system needs some TLC.

But, before you go down this path make sure you have a good backup!

To start with you likely need to check your HD's permissions & disk. To do this effectively you'll need a bootable external drive (OS-X) or if you have a newer system with a recovery partition you can boot up under it. Run Disk Utility you may need to run it a few times to fix all of the errors.

The next step is to clean out some of your junk, You should have about 1/4 to 1/3 of the drive free. You may find using this tool from the App Store will make the job easier: Disk Doctor. So after cleaning things up the last step is to defrag your hard drive. Here is the tool I use: Drive Genius. In both cases there are other Apps out there that will do the job.

The last step is letting the system run for awhile. Behind the scenes the OS is doing some magic! It needs to index all of your files and organize things. In the end your system should boot up as fast if not a little faster than Mavericks.

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