Pc Crashes After New Driver Updates Radeon HD 4000 Series?

I recently decided to update my graphics drivers on my pc but its not going too well to start of here are my PC specs,

[code]...

So when I go to update my drivers to radeon website select the card series go win 7 64 and download the drivers,Before I install the drivers I go to control panel add/remove and remove the old driver software as the website instructed,after all the old stuff is removed I restart to be safe and install new driver software,no errors during the installation but as soon as its done monitor goes dark the pc fans start to work loudly,I wait a little with no success I power down the PC and turn it back on,starting PC back up everything works for about a minute until catalyst control center decides to load its self at which point blam black screen and pc shuts off at which point I have no choice to go safe mode and roll back to previous drivers,I tried doing it thru device manager internet option but it just told me im all up to date possibly because i never update my windows and updates are turned off.I know Im not update on drivers my software according to catalyst is 11.5 and missing some important drivers