Uninstall OS LION

How can I uninstall OS lion ? and go back to Snow Leopard ?

How can I uninstall OS X Lion and go back to Snow Leopard?
1: Copy your user file folders (Documents, Pictures, Movies, Music, not Library) to a external blank Disk Utility formatted HFS drive (not TimeMachine) and disconnect all drives. Make a note of your username and hard drive name. Write down any essential information like passwords stored in keychains and product serial keys.
2: Stick the 10.6 installer disk into the machine and reboot holding the c key down. Second screen in choose Disk Utility from the Utilities menu.
3: On the left select the hard drive makers name of your internal boot drive (important) then click Erase and Erase... button (if you want to wipe the drive of all lingering data then choose Security Option>Zero all data) when choosing a name for the drive, use the same name as before.
4: Quit and install 10.6, then go through setup and use the same name as before. Software Update, install programs from fresh sources (enter any serial keys) Hold Option and click on Purchases in AppStore to redownload (not Lion of coruse) and then finally return user files to their respective folders on the Snow Leopard drive.
5: If you have issues with iPhoto, you can right click on the iPhoto Library and "Show Package contents" and in there is a folder with all your originals. Copy them out and delete the iPhoto Library and reboot, restart iPhoto and it should be recreated, which you can then import your copied originals again.
Optional, but recommended.
Ideally it's best to first Carbon Copy Cloner the 10.7 internal to another blank external HFS drive before doing the above steps 1-5 as that way you have a copy of everything in case you missed something or you need to hold option boot from the 10.7 clone. The clone can later be erased and used as a 10.6 clone.
Clones are hold option key bootable, TimeMachines drives are not.
Note: The above steps are ONLY for Mac's that didn't come with Lion preinstalled. For reverting a factory Lion to Snow Leopard requires other methods.

Similar Messages

How do I uninstall mountain lion and reinstall snow leopard

If I had known that I would not be able to use my excel files I would not have purchased OSX Mountain Lion. Is there a way to uninstall mountain lion and reinstall snow leopard?
Thank you,

To get more to the point the answer is the only way to go back to SnowLeopard is if you have a complete backup of your system from before the upgrade.
If you do you would boot off your original SL DVD wipe the disk and install SL and then restore from your SL backups.
Short of that here is no way to go back. But as the others have offered there are other less drastic means to deal with the problem.
regards

How do uninstall Mountain Lion OS

How do I uninstall Mountain Lion and go back to Snow Leopard

Downgrade Lion/Mountain Lion to Snow Leopard
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.
If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions. If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

Uninstall mountain lion and reinstall lion

how can i uninstall mountain lion and reinstall lion please i have no disks

https://discussions.apple.com/docs/DOC-1948

How to uninstall mountain lion

How to uninstall mountain lion?

Backup your files, erase the hard drive, install an earlier version of OS X.
Downgrade Lion/Mountain Lion to Snow Leopard
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.
If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions. If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

How do I uninstall OSX Lion

any bright people out there know how to uninstall OSX Lion off a macbook pro?

Sure.. reinstall from scratch is one approach.. but it's probably easier to fix the issues.
What's the problem?
Try repair permissons and restart. Try installing 10.7.3 Combo from your desktop. Try deleting "-" the wifi service in Systems Preferences/Network, and then recreate it "+". Then restart.

So I just got OSX Mavericks... Do I need to uninstall Mountain Lion now to free up space?

My memory clean application is telling me my memory is low after installing Mavericks. I want to uninstall Mountain Lion if possible. How would I do that?

Memory is different from storage space. If you ran through the upgrade process then Mavericks was installed over Mountain Lion. Open Applications>Utilities>Activity Monitor and select Memory. Something is using up your memory and this is a way to find out what application or process is the culprit.

HT201250 how uninstall mountain lion - nikon coolscan software no longer works

After installing mountain lion a few moments ago, I have not lost a valuable resource - the ability to use my Nikon CoolScan 5000. Since this product cost a lot of money, I would like to just uninstall mountain so that I can still use the software associated with this great scanner.
I have never used the Apple Support Community before, so not sure if this is manned by employees of Apple who can help me or if this more other Apple Users.
Thanks!

Good news. I took the iMac to the local Apple Store and the Apple Geniuses at the Genius Bar were able to help me out. Since I had Time Machine backing up files they were able to wipe everything from computer and reload back to where I was. I still have the installation option to re-install Mountain Lion if I want, but for now I am going to keep where I am.
So if you ever run into this problem, schedule an appointment at the Genius Bar.
Thanks!

How do I uninstall Mountain Lion and restore the prior program?

I am having too much trouble with my iMac since purchasing and downloading Mountain Lion. Can anyone give me simple directions on how to uninstall the OS and revert back to the prior program. I am not a computer savant! thanks

Unfortunately, installing a previous version of OS X is not simple. It might be easier to try to address the issues you're having with 10.8 - if you can explain what's happening, we can try to help.
Matt

How to uninstall Mountain Lion Server

I recently had to uninstall OS X Server (version 2.2, for Mountain Lion, not the earlier Server for Lion), and I couldn't figure out how. Here's what worked:
Start Applications/Server.
Turn off all services that are running.
Quit out of Server.
Drag Applications/Server to the Trash.
Doing so will cause an alert to pop up, saying that removal of Server has been detected. Okay that.
Drag Macintosh HD/Library/Server to the Trash.
Restart.
I had to uninstall because I was trying to use Migration Assistant to copy everything to a new machine, and it refused to do so as long as Server was installed.

Most of the world uses Linux or Windows Server, and that's why Apple doesn't put their highest standard of effort into OS X Server... And because of that, most of the world uses Linux or Windows Server, it's a Catch 22.
Nevertheless, it is the best solution for managing an array of Apple devices, especially corporate iPads, I can think of nothing else that lets me do all of the things OS X Server lets me do. Granted, I have a bunch of Apple products, I'm sure if I had a bunch of Android and Microsoft products, I'd be using Windows Server instead.
Like I said though, if more people used OS X Server, I'm sure Apple would put more effort into it. Heck, if they charged more for it, if that's what it takes for them to make it competitive with Windows Server, I'd pay the premium.
@MeatyChi,
You can copy the Server app from any Mac and put it on Another Mac. Don't worry about the Library/Server directory, that's automatically created when Server.app runs its first-use operations.

How to uninstall mountian lion

how to uninstall mountian lion

You have two options.
Go into internet recovery
Before turning the computer on hold down CMD Option R
Keep holding down those 3 until the computer turns on and you see a gray apple icon and a spinning wheel under it
Select Disk Utility
Either erase the drive or partition it
Select reinstall Lion
Select your drive either the formatted drive or the newly partitioned drive

I installed mountain lion, now i cant get to my word files. I would prefer uninstalling mountain lion to losing my files. Can I just uninstall and have my files back? How do I do that?

I need my word files more than I need mountain lion. Can I uninstall and have my word files back?

Snowglobe111 wrote:
I need my word files more than I need mountain lion. Can I uninstall and have my word files back?
If you are unable or unwilling to update to Office 2008 or 2011, you can install Snow Leopard Server (with Rosetta) into Parallels or VMWare Fusion and continue to use Office 2004 (and most other PowerPC applications) concurrently with Lion or Mt. Lion:
[click on image to enlarge]
Snow Leopard Server is now available from the Apple Store for $19.99 + sales tax & shipping: 1.800.MYAPPLE (1.800.692.7753). Apple Part Number: MC588Z/A

Help with uninstalling Mountain Lion .. back to Lion

A few weeks ago I installed ML and after further review, I really want to revert back to Lion instead. Without going into great specifics, I just liked Lion much bettter. I have tried to research such a task, but to no avail. I am on an 2011 imac running 10.8. I have a little experience (little being the operative word here), Macs .. but, please be gentle .. not enough to do this.
How can I uninstall ML to eventually get myself back to Lion?
Thanks so much!

m3commish wrote:
How can I uninstall ML to eventually get myself back to Lion?
If your iMac came with 10.6 disks then you can hold c boot (backup your personal info first off the machine, not to TimeMachine!) and use that to erase the entire internal drive and install 10.6
Then call Apple via phone and say you want to upgrade to 10.7 as they still sell it to those who can only upgrade to 10.7, however they might review your records and see your able too or already upgraded to 10.8 and deny you.
Since 10.7 can only be installed via Apple download, they contol if you can go back or not.
If you can find a 10.7 USB Thumb drive on eBay or Amazon, then you can use that (hold option key and boot from it) as it's a 2011 iMac.
Howver again you need to make sure the boot drive is completely erased, there is a couple of hidden partitions that need to be erased so they are back to 10.7 state.
Again don't use TimeMachine for restoring your data, it only works on 10.8 now that you have updated it. If you didn't connect your 10.7 TimeMachine then it's still good to restore from, provided you erase the boot drive and install 10.7 first.

How do I uninstall mountain lion and go back to lion, how do I uninstall mountain lion and go back to lion

Please help!!! I dont like it!

The installer may do squirrelly things in an upgrade like nip and tuck the code, turning Lion into Mountain Lion. The best option is to do a fresh install. Do a Time Machine backup of your files (you can probably exclude the system folder and apps - just download them again from the App Store). Concentrate on your home folder - iTunes files, your library folder, iPhoto library, etc. Re-download Mountain Lion from the App Store. If the installer starts, quit the app. Now go to your Application folder and find the Mountain Lion installer. View the contents of the package and go to Contents:SharedSupport:InstallESD.dmg. Drag the .dmg file to your desktop or someplace else convenient. Next, open Disk Utility and burn the disk image to an 8 GB DVD or flash drive. If you burn it to a flash drive, you may get an error saying the burn failed. If it burned for a while, long enough for the image to actually copy over, ignore it. Reboot your Mac whole holding down the Option key with the flash drive in a USB port or DVD in the drive. You should get the option to boot from that drive. Select the Mountain Lion DVD/USB option to test the boot. You can then either continue the installation or quit the installer until you're ready.
If you purchased Lion from the App Store previously, there doesn't seem to be a way to download Lion within Mountain Lion. You may have a friend with either Lion or a newer Mac with Snow Leopard installed, if so, you may want to login to their App Store, download it, and try to install Lion that way. If you bought your Mac with Lion preinstalled, you won't be able to download Lion at all.

How can I uninstall Mountain Lion and go back Lion?

I have tried everything. My MacBook Pro is just not the same since ML. I want to get rid of it and go back Lion. What is the easiest way to do so?

Clearing cache is a poor thing to do to improve system performance.
In fact, when you clear cache you actually slow your system down until cache is reloading again.
Yes, it is true cache can get corrupt and have to be cleared. This happens so infrequently that it is almost never a required solution unless you have problems that are specific to corrupt cache.
By the way why are you replying to my post when in fact your comments have nothing to do with my post at all.
Allan

Uninstall OS LION

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