=Downgrading from iTunes 11 to iTunes 10.7=
You may be able to go back with Time Machine but this may involve restoring other items too (https://discussions.apple.com/message/20441404). Alternatively:
Back up your computer first, in case the unexpected happens.
Get iTunes 10.7. Apple does not keep many old versions on its web site. I always install iTunes by downloading the installer and then keep it on my archive drive so I can have access to old versions. This one is no longer openly linked on Apple's site:
iTunes 10.7 for OS X http://appldnld.apple.com/iTunes10/041-7195.20120912.d3uzQ/iTunes10.7.dmg
Replace the iTunes 11 application with iTunes 10.7. Lion (OSX 10.7) and newer systems have iTunes integrated into the operating system and deleting is a bit more involved. The two ways I can think of to do this are:
1. Use the shareware Pacifist utility (http://www.charlessoft.com/) to install iTunes 10.7 including all associated system files..
2. Check this reference on how to delete the iTunes application itself:
Delete iTunes in Mac OS X 10.7 Lion - http://osxdaily.com/2011/09/13/delete-itunes-in-mac-os-x-10-7-lion/
In addition there may be other files that need downgrading too. See the note about error -42408 at the end of this post. You may want to tuck these away somewhere safe until you have completed the installation of iTunes 10.7. I have not tested this but ideally if newer versions are not found then the installer will put in the old versions. This may include these files in /System/Library/PrivateFrameworks/ which apparently get updated by iTunes 11:
After replacing the application and associated files using one of the above methods you will have to rescue your old iTunes library from your iTunes > Previous Libraries folder and rename it "iTunes Library.itl" (replacing the existing one in the iTunes folder) because a newer version of iTunes irreversibly updates your library file. Note, this will revert your library to version at the time of the upgrade and you will have to update any changes made since. See:
https://discussions.apple.com/message/20401436 - turingtest2 11/2012 post on rebuilding empty/corrupt library from previous iTunes library file after upgrade/crash.
iTunes: How to re-create your iTunes library and playlists - http://support.apple.com/kb/ht1451
https://discussions.apple.com/message/20432309 - solution to mobile devices saying they need to be restored after downgrading
If you encounter error-42408:
iTunes: Advanced iTunes Store troubleshooting - http://support.apple.com/kb/TS3297 > Specific Conditions and Alert Messages: (Mac OS X / Windows) - including specific error codes.
Alternatively, check https://discussions.apple.com/message/20441424 which requires you have a Time Machine backup (though possibly if you remove the newer version of these files old ones may be installed with the iTunes 10.7 installer - untested).
I was turned on to this app called Pacifist: http://www.charlessoft.com/ It's absolutely genius and can reinstall iTunes 10.7 without the pesky unknown error (-42408)!! You still need to get the .dmg file of 10.7 from the above link (if you don't already have it). But instead of opening the .dmg directly use Pacifist to open and install the package.
Finally All done by these short step:
1. Uninstalling the iTunes 11 and restart the computer then..
2. Download iTunes 10.7 and pacifist
3. Open the 10.7 dmg file, you will see the pkg file(usally double click to install), but this time drag it out somewhere. (Example on desktop folder)
4. Launch pacifist
5 Drag the pkg file to pacifist and the click install from the menu bar. (during installation, click replace everytime a window popping out (this is the key i reckon, something that can't be removed during uninstallation will be replaced by 10.7 completely thanks to pacifist)
6. Go to folder Music --> Itunes then change the name of "iTunes Library.itl" to be "iTunes Library.itl.old" then copy the lates date of "iTunes Library.itl" from Previous Itunes Libraries (for example: iTunes Library 2012-12-04.itl) copy to iTunes Folder and change it again become "iTunes Library.itl"
Those step are perfect and all done for me.
<Link Edited By Host>
I finally found a tutorial that was thorough and easy to understand, and I successfully downgraded to 10.7
Thanks to everyone here who helped me.
Well I'm glad it worked for you guys, I must be missing a step, maybe someone can help.
I had already downgraded to 10.7 but was getting the error 42404 upon opening the program.
- Uninstalled 10.7 with appzapper
- Reinstalled 10.7 with Pacifist. However, everytime it prompted me to replace a file it said the file couldn't be modified and I had to click continue.
What did I do wrong?