How to install ADB or USB drivers for your Samsung Galaxy Ace Duos ADB & USB Drivers :
1. Above provided drivers are in installable *.exe file.
2. Download the above provided driver for on your computer.
3. Install the package exe with proper administrator privileges.
4. After installation connect your Samsung device to your PC and wait for your windows computer to install & configure drivers for your Samsung device.
5. Now, restart your computer to finish driver installation.
Thank you & have fun.