MacBook Pro Screen Issue – Fix White Line on Top of 15-inch 2016 Model

It's likely the Finder's application icon is corrupted.

To check, navigate to /System/Library/CoreServices/ and select Finder.app. Get information on the file and see what the icon looks like.

I'm not sure where you can get a replacement icon (maybe another computer or the install disks with some package exploration). I'd post mine here but for Apple's remarkably strict copyright lawyers.

--SOLUTION--

Navigate to ~/Library/Preferences and move the com.apple.dock.plist file to your desktop. This may result in your dock items needing to be reloaded. Logout and back in.

You don't need to do such sophisticated thing. All you need to do is:

After making a second partition for windows:

1. Provide an external super drive and insert the DVD of windows 10 inside it.
2. You will find out that your trackpad and keyboard are not functioning in the following steps of windows 10 installation.
3. Therefore you should use a mouse (I prefer wired mouse) and an external keyboard.
4. Finally when the installation finished, download bootcamp separately from apple and install it then you'll see that all of the features of you MacBook Pro are greatly working such as trackpad, keyboard, bluetooth, graphic and etc.