I've radeon 8730m and i'm running windows 8.1 the problem was that graphics card dedicated but notwork how can i disable hd4000 built-in and use radeon card ? 
My Computer
System One
-
- OS
- win 7
- Computer type
- PC/Desktop
- CPU
- AMD phenomx2
- Memory
- 4 GB
- Graphics Card(s)
- gt 560 1 gb ddr5