my laptop specs are- dell inspiron 15r n5520
intel hd graphics 4000
windows 7 ultimate 32-bit
ati radeon 7670m 1gb
when i bought my laptop they didnt install control center after knowing my laptop has ati radeon 7670m card i installed driver its 2012 version through windows update later when i install catlayst center it installs and wont open it says ccc.exe error 0xc000007b unable to open and i can play bf3 ultra but cant play gta 4 eflc it lags even when it use 270/1066mb
Will need to enter the bios and disable intel 4000 or make discrete (AMD) primary display.
After disabling or changing priority the on board graphics via bios (delete upon bootup) install latest drivers from amd website, ignore windows update version. Previously, the driver recognized you have an amd card but because its not set as primary video(intel 4000 is), it wont initialize Catalyst Control Center.
I had a similar problem on Windows 8 (should be the same fix on 7) and finally figured it out.
1. Hit start and search for device install and click "Change device installation settings."
2. Click the box beside "No, let me choose what to do."
3. Click the box beside "Never install driver software from Windows Update."
4. Save Changes.