I can't change my desktop background-image for my macbook air I'm trying to change the background-image from my MacBook Air background, but it won't change it. I try to click on the image I want from my pictures and it makes it seem like it worked but then it hasn't changed. I tried restarting my computer but it still does not do anything. I also tried changing to one of the defaults apple has but it won't change to one of those either.
Might be corrupted desktop preferences...
Make following steps:

Open the Finder

From the Finder Menu Bar click Go &gt; Go to Folder

Paste the following in this field:
~/Library/Preferences/com.apple.finder.plist


Click Go then move the com.apple.finder.plist file to the trash.
Restart your MacBook Air, then select a desktop background photo from System Preferences &gt; Desktop &amp; Screen Saver &gt; Desktop and then it should work.