Cannot get screen resolution right using 46" TV, no resolutions work

I'm using a 46" flatscreen. The proper resolution would be 1920, as this is what I was using before. However, doing so cuts off the edges of the screen(large enough portions to make using Windows difficult). I tried switching to some other resolutions(as well as, of course, playing with the Aspect on my TV) but nothing works. This is very aggravating, since it seems that this new version of Windows doesn't support this screen or something. I hope this can be fixed, otherwise I don't know what to do besides go back to Windows 8(and frankly I'm not sure how to do that, either, since I don't have the Windows 8 disc but only the OS prepackaged on the system).

Thanks for any help,
Richard

I had to create a custom aspect ratio to get it to work. Probably not the best way to do it but couldn't find any other solutions. Thanks for all the great help.