I have used Samsung Android Phone driver in Windows 7 previously. But now in Windows 8.1 I can't install it. I have tried the latest driver from samsung official site but didn't work. Please help me.

I had the same problem last week when i was desgining an app for S III,
What i did is just going to ma-config http://www.ma-config.com/en and scan my PC when a mobil was connected, I find the name of driver and search for it in google.
I am on another PC, so, I don't remebre the exact name/link.
But, if this don't help you tell me so I can try to find it again.