Have you ever wanted to change the default background that Mac OS X displays when you log in to your computer? Luckily, it’s a pretty simple task to do. Here are the steps for Mac OS X Leopard:
1. Get a picture you’d like to be your new background. This can be from anywhere on your computer, such as your Pictures or Documents folder.
2. Click “File” in the top left-hand corner of the screen and choose “New Finder Window” (you can also hold down the Apple key and press “N” on the keyboard.
3. In the new Finder window, under “Devices” click “Macintosh HD”.
4. Open the “System” folder.
5. Open the “Library” folder.
6. Open the “CoreServices” folder.
7. In CoreServices you will see a file named “DefaultDesktop.jpg”. This is the default picture that’s displayed when you log in (the one with the purple galaxy). Make a copy of this file by holding down the Apple key and dragging it to your desktop. You can also right-click on the picture (or ctrl-click) and choose “Copy”, then right-click/ctrl-click on your desktop and choose “Paste”. Yet another way is to click on the picture, press the Apple key and “C” to copy, then press the Apple key and “V” to paste.
8. Once you’ve made a copy of DefaultDesktop.jpg, go back to the window that has the picture you want to become your new login background. Following the same method as before, make a copy of this image, although instead of putting it on your desktop, just make the copy inside the folder where the picture is already located.
9. Rename the picture “DefaultDesktop”. You can rename a file by clicking on the file once to highlight it, then clicking on the name of the file. You can also right-click/ctrl-click and choose “Get Info”, then change the name where it says “Name & Extension”.
10. Once you’ve renamed the file, drag it into CoreServices.
11. You should get a message saying “The item ‘DefaultDesktop.jpg’ could not be moved because ‘CoreServices’ cannot be modified.” Click “Authenticate”.
12. Another message will come up saying that DefaultDesktop.jpg already exists. Click “Replace”.
13. Type in your password.
The next time you log into your computer, your picture should be the background image. If you ever want to go back to the purple galaxy picture, simply drag it back into the CoreServices folder.
Filed under: Apple, Mac OS X | Tagged: Mac OS X | Leave a Comment »
