Mmm, okay what I would do is format. But you can try to go into device maniger,and see if your card is listed,if it is,then uninstall all the drivers from it. After this,go into windows update and let it update the card for you, then After this, install ccc.
Or try installing only ati without the extra's or catalyst, if this works,then install catalyst after downloading it separatly.
If this still doesnt work remove the card, gointo safe mode, enabling only basic settings,and removing all things related to your old card and also direct x and vc drivers. Then shutdown, install the card and install drivers of the disk.
And if all else fails format. But first try some easy stuff as in installing an older driver, or the previous reliece driver.