I am using hp probook 4520s computer. ati radeon mobility 4500 series is used as a video card in this computer. After upgrading to windows 10, I cannot fit my 27' monitor to the recommended resolution of 1920x1080 as a full screen. the video card does not offer any option for me to solve this problem. amd in this matter have to offer a solution. just for this reason I have no financial means to change my computer. I'm waiting for your help.
AMD offers no drivers for that graphics chip for Windows 10. Windows 8 was the last OS that supported it and support for that was ended in 2013. The only update is from Windows Update and that will be enough to surf the web but nothing else. No switchable graphics, etc.
You will have to get a new computer to run Win 10.