My computer was previously reformatted by some computer technician. When we checked if all the hardwares, we found out that the sounds does not function and music only plays in Windows media player. My audio device is ATI HD 2400. I already installed the K-Lite codec Basic v4.8.5. I also downloaded the fixnoflashsound.reg.
I also have Realtek HD in my system, but sounds only work in Windows Media Player and the Realtek Sound Check. I ran the Direct X Diagnostics and the result is "Failure at step 19 (User verification of software): HRESULT = 0x00000000 (error code)"