How to Resize Internet Explorer Windows
When I open up the Web from any source, including shortcuts, it comes up in a reduced size and I have to click on Maximize to get the window to its full size. I have closed the windows in every way possible that I know of including File, Exit. But nothing changes. How can I get my Web pages to open up in full size?
Solution:
If done correctly all of your Internet Explorer windows will open in a full screen.
If you do this right, the settings will stick. You may or may not have to reboot, depending on your operating system.

