I am looking to upgrade my ATI graphics card where can I find A 64 bit ati radeon mobility HD 4200 dowload
You are looking to update your drivers? You can simply go to ATI's website and select support and downloads and download the necessary drivers.
Should you require additional assistance and guidance, Microsoft does have an official Windows 7 Support Forum located here http://tinyurl.com/9fhdl5
. It is supported by product specialists as well as engineers and support teams.
Microsoft Windows Client Team