How can I uninstall Lion?

I'm getting a window saying the installation has failed, that I should reinstall Lion. How can I uninstall it?

http://www.apple.com/support/lion/installrecovery/
And this link for How to create Lion Recovery Drive just went MIA / "404"
http://support.apple.com/kb/HT4713
http://support.apple.com/kb/HT4718
You can also use the OS X Lion installer from the Mac App Store to create an external bootable drive, complete with a Recovery HD partition. See this article for more details. This approach will, at least, create a bootable drive with Recovery HD which you can carry with you in case you need to use Internet Restore or make use of the other utilities Recovery HD provides.
http://support.apple.com/kb/HT4649

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My mac keeps freezing...How can I uninstall lion?

My mac keeps freezing on me, particularly when Im on safari. The most annoying part is that it happens three or four times in a matter of an hour, and then Im prompted to submit a report that feels like a joke considering that we have yet to see an update for lion solving this issue, and the problem persists. How can I uninstall lion and get macs previous iOS back?

Downgrade 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.

I installed lion on my MB '08. Since then, the machine stocks form time to time. sometimes three or four times a day. Due Lion is an app as well I would like to uninstall it to try how the machine works. How can I uninstall Lion from my MacBook '08 ?

I installed lion on my MB '08. Since then, the machine stocks form time to time. sometimes three or four times a day. Due Lion is an app as well I would like to uninstall it to try how the machine works. How can I uninstall Lion from my MacBook '08 ?

Restore the backup you took before the upgrade.
Allan

How can I uninstall an apple app in Lion?

How can i uninstall an apple application in lion?

Depends on which app you want to uninstall. If you purchased an app from the app store, just remove it from the applications directory.

My Microsoft Office 2004 stopped working after upgrading to MT. How can I get it to work, or, how can I uninstall MT?

My Microsoft Office 2004 stopped working after upgrading to Mountain Lion. How can I get it to work again, or, how can I uninstall MT?

Office 2004 Applications Won't Work in Lion
You must have Office 2004 which is a PPC-only suite and will not work in Lion. You need to upgrade to Office 2011 - Mactopia - or you can try the freeware suite, Libre Office, that is functionally similar to Office 2007 for Windows except it works on Lion.
You may want to consider as well:
These two suites are similar to Libre Office but not as current or as well-supported:
NeoOffice
Open Office
And, then there is Apple's iWork suite:
Pages - word processing and layout
Keynote - presentation
Numbers - spreadsheet
Each can open and save Office compatible files. They may be purchased separately via the Mac App Store for $19.99 each.
(Access to the Mac App Store requires Snow Leopard 10.6.6 or higher and an Apple ID.)

How can I uninstall Mavericks?

How can I uninstall Mavericks? I was using Mountain Lion happily.

You can go back but it is difficult. What problems are you having? Maybe there are solutions.
OS X Mavericks: Revert to a previous OS X version
http://support.apple.com/kb/PH14176
Mountain Lion (10.8.5) http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion
10.7: http://store.apple.com/us/help/downloadable_software#MacOSX
Purchase Snow Leopard (10.6) disks: http://store.apple.com/us/product/MC573Z/A/mac-os-x-106-snow-leopard
Reverting back from Mavericks: https://discussions.apple.com/docs/DOC-6162

How can I uninstall yosemite and reinstall Loin with out losing all my in formation and programs

How can I uninstall Yosemite and reinstall Loin with out losing all my in formation and programsThis had been the worst os system apple has come out, too many errors
too many to list.
a few
Losing all mail. and watching them disappear in front of my eyes and could nothing about it
also when accessing cloud the screen just rolls in when accessing mail, like loading and loading and loading for 1 to 2 minuets.
I did not up grade my Mac Book Pro, and is working fine,
Just my iMac, its act kile avid card and it only happens access iCloud mail.
so I want to and need to go back to Loin

You can't unless you have a current backup of your old Lion system because the first thing you must do is erase the drive. It 's possible to use Target Disk Mode between your iMac and the MBP in order to clone the MBP to the iMac. However, that will still erase everything on the iMac's drive.
Or you could see about getting Yosemite to work correctly. If you have IMAP mail, then your mail should be intact.
Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Yosemite: Reboot from the Recovery HD. Select Reinstall OS X from the Utilities menu, and click on the Continue button.
Download and install the 10.10.1 update.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
5. Reinstall Yosemite from Scratch:
Download and install the 10.10.1 update.
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
How to Clean Install OS X Yosemite
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

How do you uninstall lion; too many problems

how do you uninstall lion; too many problems

Downgrade 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.

I've 2 versions of Java installed! How can I uninstall Apple's Java 6?

This is where I'm at
* Updated from Snow Leopard to Mountain Lion
* Installed Oracle Java 7 update 7 dmg
* Misread an out of date OS X Daily blog where I got this Terminal command java -version. It lead me to think Java 7 wasn't installed
* Installed Apple Java 6 via the Java Prefs app. Thought this would somehow lead to a Java 7 upgrade along the way.
* Realised that Oracle Java 7 was installed fine the first time, but java -version doesn't work with it !!
* Now I have 2 versions of Java installed!
* I reinstalled Java 7 (this time using 7 update 10) hoping it would remove Apple's Java 6 but it didn't remove it.
*For some reason too the old Java Prefs app has been automatically deleted too, so I can't switch Apple Java 6 off.
Confirmation that I have 2 Java versions installed
If I type the terminal command java -version it says I have Apple Java 6 installed.
If I open LibreOffice/Preferences/Java it says I have Apple Java 6 installed.
If I open Play Station 3 Media Server it says it's using Apple Java 6.
If I open some other Java .jar apps like JOSM it says it's using Oracle Java 7
Oracle has a FAQ that recomnds deleteing old versions of Java, but very helpfully only gives instructions for Windows.
How can I uninstall Apple's Java 6?
Thanks

Reinstall the OS … meaning reinstall OS X?! Is that not a bit over the top?
>"BTW, do note that all you're really doing is changing the Java Runtime Environment component and not Java."
At this stage I don't have a clue what I doing !!
In the past week and a half I have had a belly-full of Java name permutations. What kind of sick, twisted mind came up with Java naming scheme: Just take the word Java and append two or three letters to it using every permutation possible, throw in a few numbers for good measure, and then when discussing it just use the generic term Java… that'll really catch 'em out.
…Java SE, Jave RE, Java JDK,Java Platform, Apple Java 6, Oracle Java 7, Java 1.6.0_27, Java 1.7.0_10, Java 6, Java 7, ….. not to mention Java FX, Java DB, Java ME, Java EE, Java DST…

How can I take lion off of my MacBook Pro and go back to using Snow Leopard

How can I take lion off of my MacBook Pro because it has too much problems with the new operating system, I have talked to Apple support for both computers and still nothing happens I think they know that there's something wrong and they don't know how to fix it are there working on fixing it. So how can I put snow leopard Mac on my computer so that it works every time, there's a lot of good features in Lion but there's a lot of bad features and especially when it comes to turning on your computer and the memory that it has held so if one item is missing then it doesn't work and you have to reboot the computer to get it to work but I still like my Mac.

Take a look at this:
http://www.thesafemac.com/how-to-prepare-your-mac-for-sale/
Ciao.

How can I keep lion from generating .DS_Store files on windows network partitions, but not disable it for all network partitions?

How can I keep lion from generating .DS_Store files on windows network partitions, but not disable it for all network partitions? I am fimilar with changing the setting for all network partitions(defaults write com.apple.desktopservices DSDontWriteNetworkStores true), but that is undesirable when I connect my laptop to my home network. A preferable solution would be where I could control the writing of these files based on disk format (NTFS vs HFS+).

Go to MacUpdate or CNET Downloads and search for ds_store. There are numerous utilities for preventing them from being transferred to Windows systems.

How can I virtualize Lion if I bought a new Mac with Lion preinstalled?

Hi folks. I read that you were allowed to virtualize 1 instance of Lion after purchasing Lion. How can I virtualize Lion if I don't have any install media with one of the new macs?

If you bought on of the new MacBook Airs or Mac Minis, you will have a short term problem as the you will not be able to download a fresh copy of the Installer. See my post here.
This problem should go away soon probably with 10.7.1
If onthe other hand you bought one of the oleder models and it came with Lion, then you can download another copy of the installer by:
Open the App store.
Hold down the option key while selecting "purchased"
Lion should now say "Install" rather than "Installed".
Click install to download a new copy of the Installer.
As soona s th installer automoatically opens after doqnloading, quit it
Save a copy of the installer from Applications.
Steve

I need to change my computer... how can I uninstall Photoshop element 11 to reinstall it on my new c

I need to change my computer... how can I uninstall Photoshop element 11 to reinstall it on my new computer with the same key ?

Just go to Help>Deactivate in the editor before you uninstall.

HT3258 I am running Safari on 10.6.8. and inadvertently downloaded what I took to be an update BUT it was a lion product not running on my macbook AND in so doing I lost/overwrote or whatever my trusty Safari. How do I uninstall Lion etc and get back the

Question. I am running 10.6.8. on my macbook and wrongly/inadvertently downloaded Lion Safari rather than an update to my trusty browser system. How do I uninstall Lion which seems to have overwritten. 'scrubbed' my faithful friend leaving me bereft - hence this plea sent via my Imac.

Try the Mac OS X v10.7 Lion community on how to uninstall Lion.

How can I uninstall iDVD '08 and install iDVD '06?

There's a reported bug among iDVD '08 users where burning
large projects are resulting in audio synch problems near the
end of the burned DVD.
In other words, the audio slowly goes out of synch towards the
end of burned projects.
This is a problem inherent with 'DVD '08.
I tried uninstalling iDVD '08 and replacing with '06 but it doesn't
work. You try that and iDVD will not launch at all.
Even tried to partition my drive and install iLife '06 to the partition
but the system will not let me.
Anyone have a solution how to completely uninstall iLife '08
components and install iLife '06?
Thanks

I upgraded to iLife 08 from 06 (bad move). I couldn't install iMovie because my Mac is too old (must be Intel-based or comparable). iDVD didn't work--the document window was always black, even with a theme selected. The Virtual Band function in GarageBand did nothing whatsoever. I trashed the '08 applications, moved all Preferences files to my desktop, reinstalled iLife '06. Now, iDVD won't launch--just flashes the menu bar and exits back to the Finder. So, I have several DVD projects on my system that I cannot finish because I cannot reinstall iLife '06 (like the originator of this problem, "How can I uninstall iDVD '08 and install iDVD '06?") I hope someone has an answer as this is frustrating and costly to my small business.

How can I uninstall Lion?

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