How to change Mac OS X Login screen background

CuddapahOnline does not guarantee that our tips will work in all cases. Use at your own risk.

1. Go to folder /System/Library/CoreServices
2. You have to replace
DefaultDesktop.jpg
3. Create a new DefaultDesktop.jpg
4. Rename DefaultDesktop.jpg to DefaultDesktopOrig.jpg
5. Drop your new DefaultDesktop.jpg into this folder
6. Using Disk Utility, repair disk permissions
7. Logout


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