Yes,I agree.
and with that said its irrelevant to repeat something thats already been said.
but with that I said about the Catalyst Control Centre and not about Catalyst Installer as no one said anything about Catalyst Control Center.
An to address your own issue try uninstalling the ATI Drivers completely with ATI's uninstaller, that is unless it freezes before you get to the point where it asks if you want to install or uninstall ? Also if your using ATI Tray Tools it can cause driver issues so uninstall that before installing/uninstalling new drivers.
I've tried everything in order to install the catalyst control center.I could not uninstall the older catalyst driver because the catalyst installer won't even start.So I had to use driver sweeper in safe mode to remove all traces of ATI.But still due to some reason the Catalyst Installer won't start.
Apparently there seems to be only three solutions to this problem:
1.Using system restore
2.or Install only the display driver with device manger. Catalyst Control Center can't be installed.
3.or Install fresh copy of windows and everything works perfectly.