Can i undo mountain lion upgrade

I upgraded my mac to mountain lion and now it is sooooo slow. Is there anything I can do to fix it or can I just undo the mountain lion update?

4 GB should be sufficient.
As others have noted there are many potential reasons for this apparent slowness. It is possible that you have one or more programs or non-Apple system modifications that worked well for you in the past, but are no longer behaving after the upgrade.
Rather than ask a dozen different questions regarding what might be the cause, would you be willing to download and run a little utility that may help narrow the list?
If so read the following:
Apple Support Communities contributor etresoft wrote a very useful app to quickly gather certain system information that may help point to a cause of this problem. Go to his website, download and run EtreCheck:
http://www.etresoft.com/etrecheck
Don't be concerned about anything that says "Problem" or "failed".
Copy and paste its output in a reply.
Etrecheck was designed to remove any personal information (such as your computer's name and serial numbers) but if you see anything that looks like an email address or any other personal information that should not be divulged to others, please delete or obscure that information when you post the reply.
When you are finished with EtreCheck, quit the program. It occupies very little space, and you can keep it or drag it to the Trash as you wish.

Similar Messages

How can I get Mountain Lion upgrade to download

I am trying to upgrade my Snow Leopard OS X 10.6.8 to Mountain Lion and am not meeting with a lot of success. The Mountain Lion upgrade will not load past 79.34MB of the 4.37GB dowload. At this point the word 'Calculating' appear and the download never gets any further. My Broadband is not very quick as we are out in the sticks but I have not had this problem previously. Any ideas? Would it be possible to download to a stick on another computer and then install
on my Mac?

Thanks adamlong277 !! I had the same problem. Took your advice and downloaded 'hopstop shield'. It immediately resumed and got past the 79.34MB point. It looks like a nice feature to have in case anything like that happens again, especially as it's so easy to connect/disconnect 'hotstop shield' at anytime. Appreciate your help

HT1338 When I can gain the mountain lion upgrade after I sent the upgrade request?

I sent the request at July 25, when I can gain the upgrade from the app store?

At least 72 hours so be patient.

Can't install Mountain lion upgrade on 2011 iMac

Imac has over 300gb of space. After downloading from app store I click on to install, agree with terms and conditions click next and nothing happens. Currently running lion 10.7.5

If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select "/var/log/install.log" from the file list on the left. If you don't see that list, select
View ▹ Show Log List
from the menu bar. Then select the messages from the last installation or update attempt, starting from the time when you initiated it. If you're not sure when that was, start over and note the time. Copy them to the Clipboard (command-C). Paste into a reply to this message (command-V).
If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into this discussion.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting.

Have early 2007 MacBookPro, Intel core 2 duo, 2.16 GHz; six mos ago expanded memory to 3GB to upgrade software to Snow Leopard; can I install Mountain Lion on my hardware?

have early 2007 MacBookPro, Intel core 2 duo, 2.16 GHz; six mos ago expanded memory to 3GB to upgrade software to Snow Leopard; can I install Mountain Lion on my hardware?

Supported
Models
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
Xserve (Early 2009)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)

I bought a Mountain Lion upgrade for $20 off the Apple site. I have four other Macs all under the same ID. How can I share the new OS with other computers. Or can I?

I bought a Mountain Lion upgrade for $20 off the Apple site. I have four other Macs all under the same ID. How can I share the new OS with other computers. Or can I?

You can share it with other Macs under your control (not your neighbor's). You just need to be logged in under the buying AppleID for updates or to download again.
Use this thread to find a method of copying the ML download into a USB drive to make other installations easier: https://discussions.apple.com/message/16639520#16639520

Can't purchase Mountain Lion. Upgraded my Macbook (memory and OSX). I have a black Macbook (2009) will it work?

Can't purchase Mountain Lion. Upgraded my memory and OSX. I have a black Macbook (2009) will it work?

The Black Macbook was for Sale between 2006 and 2008.
http://en.wikipedia.org/wiki/MacBook
To Upgrade to Mountain Lion... Your Mac must be one of the following models:
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)

I have a mac pro 1,1. I would like to know if its possible for me to upgrade the parts to where i can install osx mountain lion, or osx mavericks?

I have a mac pro 1,1. I would like to know if its possible for me to upgrade the parts to where i can install osx mountain lion, or osx mavericks? I am currently adding more ram so it will have 32gb of ram, i have 2 250gb HDD but adding a 250gb SSD , and have a ATI Radeon HD 4870 512mb that i will most likely upgrade to an ATi Radeon HD 5570 1gb.

The SSD will boot fast, but the real change is launching 10 programs in 10 seconds and being able to use them. (20 seconds for a few big suites).
I would not add or upgrade to 32GB RAM. You can get 8 x 2GB for $100 on Amazon.
Those 250GB HDD are "old" and slow and overdue to be replaced, reformat and use t o backup the system.
Samsung 250GB SSD is down to $150 or so on Amazon also.
The 5770 is gone, hard to find, EOL and over charged for when you do find one.
you could look into how to use a PC 6870 or others.
Or, you could hold out and wait for a refresh of Mac-Mini which can be just as fast or faster and run Mavericks.

Can't sleep after Mountain Lion Upgrade

I have 13-Inch Mid 2009 Macbook Pro, it won't sleep after Mountain Lion upgrade. How can I solve this problem?

Hi,
After the first update to Lion, sleep problem is resovled. I am now at 10.8.1 and everything looks fine.

Can't login after Mountain Lion upgrade (Network accounts are unavailable)

I performed a Mountain Lion upgrade on a 2011 MBP running Lion this weekend. The Mac may have been set up to connect to an AD server with my user account, but I thought I had disabled that months ago... aparently not. I performed the upgrade at home not on the corporate network.
On first bootup after the Mountain Lion upgrade I'm stuck at the login screen unable to login with my local account or the admin account. I get the "red dot" next to the username field with the "Network accounts are unavailable" pop up. I'm plugged in to the ethernet network at work now... no luck.
I tried booting into the repair disk and repairing disk permissions. Still no luck.
Any ideas? I'd happily do a fresh install but I need to get a handful of files off the machine first.

No worries with the basic questions... it's important to cover all the bases. Thanks so much for the input.
- I'm trying to log in with the same username I would use to ssh in... so yes.
- I don't know if the account was a mobile account. The Mac was given to me configured about a year ago, configured to be on the domain. I since have used it on and off many networks without considering it was set up to be on a domain.
- Never had a problem logging into the machine before the mountain lion install, although to be honest it was very very rarely ever rebooted.
- I've plugged it into ethernet and let it sit for quite some time. It's still telling me Network accounts are unavailable and I'm unable to login with my personal or admin account.

I recently purchased an iMac from a friend who factory reset it, and now I can't reinstall Mountain Lion?

     As the title says, I can't reinstall Mountain Lion. When I turn on the iMac, it send me straight to OX X Utilities. When I click on Reinstall Mountain Lion, it asks for my ID, but then states I did not purchase Mountain Lion. How do I fix this issue? I've tried asking Apple Support, but to no avail. I don't think the guy I spoke with understood what was going on.
I cannot get around OS X Utilities. There are only four options for me.
Reinstall Mountain Lion
Back Up (tried, nothing comes up)
Get Help Online (which is what I'm doing here)
Erase or Restore Utilities (I've checked this, it says my disks are not malfunctioning)
     My friend suggested signing into his ID to reinstall but when we did, it also said this ID has not purchased Mountain Lion. We logged into Apple Support went to registed devices and there was nothing there. I think he may have used another ID which is he searching for the info for. If we get the right ID, then maybe it will let us sign in on his name and reinstall Mountain Lion. But if he can't, or Apple won't take his ID, then I'm at a loss for options.
     So now I'm here, hoping someone else who bought a used iMac from a friend who factory reset it and needs info on how to reinstall Mountain Lion can help me. I don't know what else to do. If I can't get this thing sorted out, I'll have to drive to the apple store. The closest one is 60 miles away, so I'm not looking forward to that. Is that my only option now? What can I do?
tl;dr I bought a used iMac from a friend who factory reset it, and now I don't know how to reinstall Mountain Lion. What are my options?

If the system didn't ship with Mountain Lion originally and you didn't purchase Mountain Lion yourself, then you will need to purchase. A purchase by the system's original owner cannot be transferred to you.
Unless you have another system on which you have purchased Mountain Lion, you will need to first install Mac OS X 10.6.8 on the iMac, for which you'll need either the original installation disks, if the iMac came with 10.6, or a retail copy of 10.6. Install 10.6 and upgrade to at least 10.6.6, and then you can buy Mountain Lion from the Mac App Store, presuming of course that the imac can support Mountain Lion. See:
http://www.apple.com/osx/how-to-upgrade/
Regards.

Can I install Mountain lion on macbook white bought in November 2007

Can I install Mountain lion on macbook white bought in November 2007?

Macs that can be upgraded to OS X Mountain Lion
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)

Can i install mountain lion on Macbook 4,1

Can I install Mountain Lion on a MacBook 4,1

MacBook4,1 is the Late 2008 MacBook. Mountain Lion is compatible with the Late 2008 Aluminum or Early 2009 MacBook, so you can't upgrade to Mountain Lion. Read > http://www.apple.com/osx/specs

Can I install Mountain Lion in my Mac Pro

Can I install Mountain Lion in my Mac Pro? This is my main computer and i only wnt to move forward if I know that it is 100% compatible with OS 10.8. They tell you to look to see when it was built but there is no date that I can see. I'm pretty sure I got it in early 2008 ... Here's the Hardware overview, without the serial number:
Model Name:          Mac Pro
Model Identifier:          MacPro3,1
Processor Name:          Quad-Core Intel Xeon
Processor Speed:          3.2 GHz
Number Of Processors:          2
Total Number Of Cores:          8
L2 Cache (per processor):          12 MB
Memory:          16 GB
Bus Speed:          1.6 GHz
Boot ROM Version:          MP31.006C.B05
SMC Version (system):          1.25f4
Serial Number (system):
Hardware UUID:          449CFA37-8EAE-5A08-9027-1236BC17C747
Thanks much.

Yes, you can.
Upgrading to Mountain Lion
To upgrade to Mountain Lion you must have Snow Leopard 10.6.8 or Lion installed. Purchase and download Mountain Lion from the App Store. Sign in using your Apple ID. Mountain Lion is $19.99 plus tax. The file is quite large, over 4 GBs, so allow some time to download. It would be preferable to use Ethernet because it is nearly four times faster than wireless.
     OS X Mountain Lion - System Requirements
       Macs that can be upgraded to OS X Mountain Lion
         1. iMac (Mid 2007 or newer) - Model Identifier 7,1 or later
         2. MacBook (Late 2008 Aluminum, or Early 2009 or newer) - Model Identifier 5,1 or later
         3. MacBook Pro (Mid/Late 2007 or newer) - Model Identifier 3,1 or later
         4. MacBook Air (Late 2008 or newer) - Model Identifier 2,1 or later
         5. Mac mini (Early 2009 or newer) - Model Identifier 3,1 or later
         6. Mac Pro (Early 2008 or newer) - Model Identifier 3,1 or later
         7. Xserve (Early 2009) - Model Identifier 3,1 or later
To find the model identifier open System Profiler in the Utilities folder. It's displayed in the panel on the right.
     Are my applications compatible?
         See App Compatibility Table - RoaringApps.
     For a complete How-To introduction from Apple see Upgrade to OS X Mountain Lion.

Can I install "Mountain Lion" on a Macbook 13" Aluminium Ende 2008?

hallo,
I own a Macbook 13" Aluminium End 2008.
I'd like to use icloud. Can I install "Mountain Lion"?
Thanks.
Netti13

Your Tag states you are running Mac OS X Leopard 10.5.8...
If this is the case... Read on...
The first step in Upgrading... is to Snow Leopard = OS X 10.6.x
It is Not available as a download... It is a Paid Upgrade.
Do this first...
Check that your Mac meets the System Requirements for Snow Leopard...
Snow Leopard Tech Specs
http://support.apple.com/kb/SP575
If so... Purchase a Snow Leopard Install Disc...
http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
Other countries...
http://support.apple.com/kb/HE57
After the Successful Install, run Software Update to get the latest updates for Snow Leopard.
Be sure to make a Backup of your Current System Before Upgrading...
Next...
Upgrade to Mountain Lion
With Regard to ML... Check here for compatibility of 3rd party Software you may be using... Also note that Rosetta is no longer supported in Lion and Mountain Lion...
http://roaringapps.com/apps:table
You should also consider more RAM... Get the Maximum you can for your Mac...
It is important to get the Correct and Matching RAM
See Here > OWC RAM > http://www.macsales.com
The above site also has videos on how to Install RAM should you need it...

Can i undo mountain lion upgrade

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