Things You'll Need:
- Mac
- Mouse
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Step 1
Click the apple icon in the upper left hand corner and scroll down to select system preferences.
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Step 2
The system preferences window will open. Click the icon that says "Desktop & Screen Saver".
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Step 3
The Desktop & Screen Saver window will now appear. There are two buttons near the top. One reading "Desktop" and the other "Screen Saver". Select the Desktop button if it is not already selected.
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Step 4
The Desktop window will now be open. On the left hand side will be the different folders on your computer that contain pictures. Click on one of the folders and it will display the pictures inside that folder in the right hand side box.
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Step 5
You are now viewing thumbnail images of that folders contents. Continue clicking folders until you find the thumbnail of the picture you are looking for.
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Step 6
Click the thumbnail picture to set it as your wallpaper.
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Step 7
Enjoy your new wallpaper on your Mac computer!













