I was to install Radeon relive but my friend said that it is necessary to uninstall catalyst first.
I a bit confused. guide me.
There is always some stray files that get left behind it's only good practice to get rid of previous programs/apps before installing another and even if it doesn't ask after the un-install re-booting doesn't hurt.
With ReLive AMD (finally) introduced a Clean Install option so you don't need to uninstall it from the control panel anymore.
Retrieving data ...