Repair empty or partially filled bar under Laundpad icon in Dock
Every so often, you may notice that your LaunchPad icon has an empty or partially-filled progress bar beneath it. Here is how you can get rid of that annoying little bugger.
Paste the following command: defaults write com.apple.dock ResetLaunchPad -bool true; killall Dock
Restart your Mac
When the system comes back up, your LaunchPad icon should no longer have the progress bar (unless you actually have an update that kick starts itself back into progressing!).