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Is anyone else Mac freezing since mountain lion upgrade

Has mountain lion screwed anyone else's iMac up?

iMac, OS X Mountain Lion

Posted on Jul 29, 2012 8:19 PM

Reply
11 replies

May 18, 2013 12:22 PM in response to Jlandeis

Try doing some basic maintenance.


Do a backup, using either Time Machine or a cloning program, to ensure files/data can be recovered. Two backups are better than one.


Run Disk Utility/Repair Permissions (Applications/Utility Folder). Run until it reports no errors. If there is a recurring error, see the article on what permission errors can be ignored.


Disk Utility


Disk Utility Repair Permissions You Can Safely Ignore


Restart the computer holding down the command - option/alt - P - R keys before the grey screen appears. Continue to hold until you hear the startup chime for the second time.

Reset NVRAM/PRAM


Try an SMC reset. The article covers when this is required, but doing this will not affect anything.


Reset SMC

General Maintenance Recommendations


Maintenance Quick Assist


Maintaining Mac OS


If you are still experiencing problems after that post what is happening (specifics) and someone can try to help you.

May 19, 2013 5:42 AM in response to Jlandeis

FWIW, I have been encountering the 'random freeze' issue for months. I have:

1) deleted old/obsolete/unused software

2) run Disk Utility to confirm no issues with my drive

3) Reset the NVRAM and PRAM

4) Reset SMC

5) Turned off Bluetooth altogether

6) Run the machine in Safe Boot mode only.


None of these workarounds fixed the issue. In desperation I performed a clean install of 10.8.3. Four days on and I have started to encounter the 'random freeze' again.


From everything I have read on these forums it is not a hardware issue, it is occurring with ML across the range of Apple hardware.


I am using a mid-2007 17" iMac with 4GB RAM. My wife was inclined to upgrade to a new Mac but reading these forums it appears that even some new machines are encountering the same problem.


At this point i am trying to find a means of downgrading to Lion but that is easier than it sounds - in the US you can call a number and pay for a code to download Lion from the App Store. It appears that option is not available in Australia (where I am).


I have been a Mac user since our first home computer was a beige box back in the mid-80s. This is the first time I have genuinely felt seriously about getting rid of my Mac altogether. This issue is detailed multiple times throughout these forums yet to date there appears to be no acknowledgement of the issue by Apple, or any confirmed fix.


At present I have an iMac which is essentially crippled yet in order to revert to a previous version of software I now have to come up with some sort of work around.


This issue needs to be sorted properly, and soon.

Sep 4, 2013 6:00 AM in response to thomas_r.

Yep. Wish I'd never installed it. Running it on an older imac (mid 2007 model) Never had any issues with it before. Now it freezes all the time, has issues with iTunes and it's getting very very hot. This machine is my baby and I need it to make my living as a graphic designer. Taking it in to NextByte tomorrow to have them revert back an earlier OSX. What a total waste of time and money. It seems that so many peeps are having the same issues with me on their older macs - Apple are being dishonest when they state that Mountain Lion is campatable with older macs. If you're thinking about it, DON'T UPGRADE!!!

Is anyone else Mac freezing since mountain lion upgrade

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