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How can I uninstall OS X Yosemite and return to OS X Mavericks?

How can I uninstall OS X Yosemite and return to OS X Mavericks?

Posted on Oct 17, 2014 3:09 PM

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Posted on Oct 17, 2014 3:17 PM

  1. You must have a fully bootable Mavericks system from which to boot the computer. You can then erase the volume with Yosemite, then clone the Mavericks system to the empty volume you just erased.
  2. You can erase the drive and reinstall Mavericks if you have a USB Mavericks installer flash drive.
  3. You can boot the computer via Internet Recovery and reinstall the original version of OS X that came with the computer. This is only feasible on models from 2011 to the present.
600 replies

Nov 23, 2014 7:57 PM in response to nugj

nugj wrote:


I realize this is an Apple site. So "the other side of the discussion is not likely to be too sympathetic to those of us that are struggling with Yosemite.

Although Apple hosts the site, almost everybody here is a user just like you. Should there be a highly unlikely appearance of an Apple employee here, they will be clearly identified as such.

I am not going to drop kick what was a decently working piece of hardware out the window just because Apple would like me to buy a new Macbook.

I don't believe that's what Apple has in mind for you. A three year old laptop with 8GB RAM which ran fine with Mavericks should not be having any major issues with Yosemite. I personally know several dozen users with similar setups that aren't having any seriousissues with Yosemite.

I guess I will give it a couple more weeks assuming there is a possibility that Apple is working on some of these compatibility issues.

Difficult to say, especially since I can't locate a discussion that you have participated in where you detailed your specific compatibility issues. This certainly isn't the place to do that as it will get lost in all the noise, but if you start a new discussion topic and clearly outline those issues in as much detail as you are able to, I am certain you will attract several troubleshooters who might be able to give you a hand.

Don't suppose anybody knows what Apple Support would charge me for taking a Macbook back to Mavericks.

Everybody here will tell you that you must always have a backup before you apply each and every update to avoid having to pay for something like that, but it's hard to say what might happen in your case. I know a few users who have had such a thing done for free, but I suspect that's highly variable.

Nov 23, 2014 9:37 PM in response to MadMacs0

Didn't think Apple would pull Mavericks out of the store at this point. Frankly there is not much of a good reason for doing that. I can think of reasons why but none of them amount to anything helpful to the Apple community at large. Mavericks is not even that old and it was there when I loaded Yosemite.


There is one question that I have asked here several times without response even in the thread where the topic originated.


Which file is the correct file to trash to get rid of the Safari cache? One thing that helped perk up the Macbook was to empty browser cache. This Macbook has slowed to a crawl since Yosemite and it simply freezes often now. It was easy to find and empty Mozilla cache although i fail to understand why Apple found it necessary to hide the library.


While generally speaking, emptying the cache can often actually slow things up that is not likely to be the case for a cache that has been building for three years. While likely to only be a minor contributor to the problem the Macbook did perk up as soon as I dumped the Mozilla cache and it is sure to have been smaller than the Safari cache.


Maybe others participating in the "empty the cache" thread don't have Yosemite, Apparently they don't see the same thing I see they see when I go to my library. Actually I think that thread is a "slow computer" thread. But there are now a few pages of it dedicated to the empty the cache topic. So I will try this one again as it should be a fairly straightforward answer to the simple question.."which file do I trash".


Again the Mozilla cache was a cinch. File was easy to identify and just as easy to trash.


Safari is somewhat more complicated. I did not see anything like what people were reporting as the correct file to trash from library as everything looks different in Yosemite. So here is what I have when I open my com.apple.Safari folder from the library:

I have four items that don't even look like file folders. They are in order left to right:

cache_set.dmp

Cache.db

Cache.db-shm

Cache.db-wal


So I am thinking the files above are not something to trash...and won't rid me of the junk I want to toss.


The file folders in my library in com.apple.Safari are as follows. I am assuming it is one of these that must be trashed to get rid of the safari cache:

com.apple.Safari.Safaribrowsing

Extensions

fsCacheddata

RemoteNotifications

Webpage Previews


I am thinking it might be the fsCacheddata folder but only because by name it seems to make the most sense. Extensions seems somehow linked to Norton antivirus. So I don't think it is that one. Any idea if fsCacheddata is the one?


Thanks in advance.

Nov 23, 2014 10:28 PM in response to nugj

The Apple approved method, as described in Safari 8 (Yosemite): Manage cookies and website data is to "Choose Safari > Preferences and click Remove All Website Data, or click Details, select one or more websites, then click Remove.


Removing the data may reduce tracking, but may also log you out of websites or change website behavior."


Clearly that can have the undesired effect of removing much more than you want, including cookies that contain login information, history, etc.


One method that some users prefer is to select "Show History" from the Safari History menu, select all and hit the delete key.


Deleting everything you found in ~/Library/Caches/com.apple.Safari should not hurt anything and all will be rebuilt over time, if you would rather do that.

Nov 24, 2014 7:09 AM in response to Allan Eckert

Ok, so I guess I have to have an external HD bigger than 128 GB flash storage (my current HD ) ?


Yosemite has some nice aesthetics, but when everything- Mail, Safari,Keychain,System Preferences, freeezes/stops working/craps out completely, it's just not okay at all.

Thank god icloud still works, and itunes. And Firefox for Mac. I know other people who nothing works at all.


Honestly with all this bother Apple should be making a separate webpage so we can all make a bootable Mavericks DVD.

Thank-you for all your help.

How can I uninstall OS X Yosemite and return to OS X Mavericks?

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