If you have a Nvidia video card you can go to the Nvidia conytol panel and make adjustments to the screen positioning.
You can also go to control panel and select display and make changes there.
Also if you have an onscreen display on the monitor you can adjust the position of the display.
I do not have a video card. I did go to display and followed directions but was not successful. Nothing changed . I do not have an onscreen diisplay on the monitor.