TS5458 How can I uninstall OS X Yosemite?

I need to find out how to uninstall OS X Yosemite. Please make it in simple english. Fairly new at this. When I upgraded I thought it was for what I already had not this new software.

Restore the bootable backup/clone or Time Machine backup of your previously good OS. Alternatively, see http://osxdaily.com/2014/10/22/downgrade-os-x-yosemite-to-mavericks/, which mentions going back to Mavericks. It's not clear which OS you're running; although, you did post to the Mtn Lion forums.
27" i7 iMac (Mid 2011) refurb, OS X Yo (10.10.1), Mavs, ML & SL, G4 450 MP w/10.5 & 9.2.2

Similar Messages

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 OS X Yosemite?

I have recently installed the new OS X Yosemite. It's nice, however, I miss my mavericks system. How do I uninstall OS X Yosemite and back to Mavericks? I have a macbook pro w/ retina, and I think I have the OS X Yosemite 10.10 because it is asking me to update to 10.10.1.

Presently, you cannot reinstall Mavericks because Apple does not permit it. What you can do is reinstall Mavericks provided you have retained a backup of your Mavericks system that you can restore or you saved the Mavericks installer when you first upgraded to Mavericks. Otherwise, you can reinstall the system that came pre-installed on your computer when it was new:
Install OS X Using Internet Recovery
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.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall OS X: Select Reinstall OS X and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

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.

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.

Since installing Yosemite my Quarkxpress 10 is not running correctly. Too slow or crashes. How do I uninstall Os X Yosemite without losing all of my designs?

Since installing Yosemite my Quarkxpress 10 is not running correctly. Too slow or crashes. How do I uninstall Os X Yosemite without losing all of my designs?

Thank you Thomas
First, for changing my question to the right forum. I am new on this and wasn't aware I was in the wrong forum.
Secondly, even though my initial question is not answered as in: I just want to remove Classic, what you say is right. I think now, after writing my long question and seeing your answers, that I should start from scratch.
To answer your question, I bought the new drive to be able to store and back up into DVDs and CDs all the photographs and movies that are still in the computer. I also need to make CDs of my portfolio since I am trying to find a new job and buying a new Mac at this point is out of the question. To upgrade the computer: I just do not have use for OS 9 anymore; I cannot upgrade to the latest Java, Safari or have issues with Flash or other programs; the programs that I have and need will still run perfectly fine or better in Leopard. And even if I could buy another computer I would still like to hang onto this computer for a while.

How can I uninstall my Photoshop CS 3 from my Mac, without an uninstaller?

How can I uninstall my Photoshop CS3 from my Mac OS Extended (Journaled)? It has never opened, since I increased the Mac's capacity to 2 TB. Now I want to throw the Photoshop CS3 away and get a brand new Photoshop CS5. There does not seem to be an uninstaller anywhere to be found. Adobe spent an hour and a half on the phone with me and could not find a work-around. We tried to reinstall the CS3 from the disk, but the installations failed.
An earlier Photoshop CS2 is also on the computer and needs to be uninstalled.
Is there a way to rescue my computer and put the new Photoshop on it?

You need to manually delete the caps.db (somewehre in the Library:Application Support:Adobe folder) and then you can trash the program folders. Without an existing caps.db, a new one wil lbe created from scratch and al linstalls should run as if there never was anything on the system just as conversely you should not have trouble simply deleting the old versions...
Mylenium

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.

How can i uninstalled adobe creative suite on my old computer that it doesn´t work now and installed adobe on my new computer?

how can i uninstalled adobe creative suite on my old computer that it doesn´t work now and installed adobe on my new computer?

use the adobe uninstallers to uninstall from your old computer, and use the installation files to install on your new computer.
Downloads available:
Suites and Programs: CC 2014 | CC | CS6 | CS5.5 | CS5 | CS4 | CS3
Acrobat: XI, X | 9,8 | 9 standard
Premiere Elements: 13 | 12 | 11, 10 | 9, 8, 7
Photoshop Elements: 13 |12 | 11, 10 | 9,8,7
Lightroom: 5.6| 5 | 4 | 3
Captivate: 8 | 7 | 6 | 5
Contribute: CS5 | CS4, CS3
Download and installation help for Adobe links
Download and installation help for Prodesigntools links are listed on most linked pages. They are critical; especially steps 1, 2 and 3. If you click a link that does not have those steps listed, open a second window using the Lightroom 3 link to see those 'Important Instructions'.

How can I uninstall leopard ?!!

I hope someone can help me. I bought Lepoard last week and I want it out of my MacBook Pro.
Its slowing my computer down. How can I go back to Tiger? Will all the leopard components be definitely gone? Thanks!
regards to all.. / Alexis

*" How can I uninstall leopard ?!! "*
You don't uninstall an entire operating system. You reinstall the old one:
http://docs.info.apple.com/article.html?artnum=107120

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 old versions of Adobe Illustrator?

How can I uninstall old versions of Adobe Illustrator?

This is for uninstalling CS2, but you might find it helpful. EDITED: but watch out, since I don't know if trashing any of these will remove currently needed Illustrator files, if you have a later version.
To uninstall Adobe Creative Suite in Mac OS 1 -- Double-click Activity Monitor.app in Applications/Utilities, select AHCRemind, and click Quit Process.
2 -- If you intend to install the product on a different computer, transfer the activation. (See “To transfer the product activation” on page 1.)
3 -- If you want to uninstall Adobe Acrobat, double-click the uninstaller in Applications/Adobe Acrobat 7.0 Professional, and follow the on-screen instructions.
4 -- If you want to uninstall Version Cue 2, double-click the uninstaller in Applications/Adobe VersionCue CS2, and follow the on-screen instructions.
Note: If the Version Cue uninstaller fails, see the alternative procecure, “To remove Version Cue manually” on page 4.
5 -- From the Applications folder, drag the following items, if present, to the trash: Note: After you drag the items to the trash in steps 5-8, you must empty the trash before you can reinstall
Adobe Creative Suite 2 on the same computer. • Adobe Acrobat 7.0 Professional • Adobe VersionCue CS2 • Adobe Bridge
• Adobe GoLive CS2 • Adobe Illustrator CS2 • Adobe InDesign CS2 • Adobe Photoshop CS2 • AdobeHelpCenter.app
6 -- From the Utilities folder, drag the following items, if present, to the trash: • Adobe Utilities • Adobe Updater.app
7 -- From the Library folder, drag the following items, if present, to the trash: • Application Support/Adobe/AdobeHelpData • Application Support/Adobe/Assistance • Application Support/Adobe/StartupScripts/Workflow Automation Scripts
• Preferences/Adobe/Workflow • Preferences/com.adobe.ActivationUtility.plist • Preferences/com.adobe.GoLive.plist • Preferences/Adobe Save For Web GL 8.0 Prefs
8 -- From the Users/[user name] folder, drag the following items, if present, to the trash: • Library/Preferences Panes/Opera Preferences
• Library/Caches/Opera Cache
• Documents/AdobeStockPhotos
To remove Version Cue manually (Mac OS only, not recommended)
If you’ve accidentally removed parts of the Version Cue installation manually or if the uninstaller fails, you have to remove the remaining installed Version Cue components manually.
1 -- From the Library/PreferencePanes folder, drag the Version Cue CS2.prefPane folder to the trash. 2 -- From the Library/Preferences folder, drag the com.adobe.versioncueCS2.plist file to the trash. 3 -- From the Library/StartupItems folder, drag the AdobeVersionCueCS2 folder to the trash. 4 -- From the Applications folder, drag the Adobe Version Cue CS2 folder to the trash.
5 -- From [user home]/Library/Preferences/Adobe, drag the Workflow folder to the trash. 6 -- (Optional) From the [user home]/Documents folder, drag the Version Cue folder to the trash.

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 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

How can I use Notes in Yosemite on my Mac Book Pro? I used Notes on Lion but cannot view Notes on Yosemite?

How can I use Notes in Yosemite on my Mac Book Pro? I used Notes on Lion but cannot view Notes on Yosemite? Many thanks, Rick

Hello rick0809,
Thank you for visiting Apple Support Communities.
Are you getting an error message when trying to use Notes?
Notes Help: Write and share notes
(Applications > Notes)
Regards,
Nubz

TS5458 How can I uninstall OS X Yosemite?

Similar Messages

Maybe you are looking for