Assassin’s Creed IV Black Flag – Real Borderless Window

For some odd reason there isn’t a standard borderless window mode in AC4.  It’s also very difficult to find a workaround to this solution.  The typical programs that force borderless window successfully in most games just doesn’t work here.  After a bit of digging I was able to find the solution:

WinExplorer

It’s very simple.  Download and install the program.  Boot up AC4.  Alt+Tab and boot up WinExplorer.  You’ll be presented with a list of currently running windows.  In this list scroll down and find Assassin’s Creed IV Black Flag.  Click on this application.  Below the list you’ll see a set of tabs, click on the “Style” tab.  It will look something like this:

You’re going to want to check the boxes labelled “WS_DISABLED” and “WS_CHILD”.  It will now look like this:

Your game will not be in borderless window mode!  Enjoy!