I would need more information in regards to your system configuration:
Which version of Windows do you have?
Also, the exact processor model and the graphics controller:
Thanks for the information.
I see the native screen resolution is 1920 x 1080 based on the specifications.
Are you getting up to 1920*1080?
I understand that Intel is working with Microsoft in regard to Scaling issues. If you are still getting black borders on the screen, this might be scaling problem.