How do I restore icons in Finder? So yesterday I tried opening one of my apps an the Dock just froze completely. I tried every tip I could find online like Command+Option+Escape and killall -KILL Dock, but nothing fixed it. I was finally forced to restart my MacBook Pro. Now, my Finder looks like this:



How do I fix Finder?
You can reset OS X's icon cache with the following commands. Just copy and paste each into a Terminal window and then reboot your Mac.

 sudo find /private/var/folders/ -name com.apple.dock.iconcache -exec rm {} \;
 sudo find /private/var/folders/ -name com.apple.iconservices -exec rm -rf {} \;
 sudo rm -rf /Library/Caches/com.apple.iconservices.store


Source: Clearing the Icon Services cache in Yosemite