Below download official and tested version of Samsung USB Driver. You can quickly download it from the direct link below:
Samsung USB Driver is Officially Created by Samsung Mobile Inc. So, Full credits goes to them for sharing the drivers for free.
Installation Guide to Samsung Galaxy A3 (2017)
Step 1: To get started, download the Samsung driver and extract it on your desktop.
Step 2: Double Click to launch the Installation Wizard window then choose the required language and your country.
Step 3: Now choose the destination install folder using the Browse button. Once done, click “Install” in the installation wizard window.
Step 4: Next, you will see the Installation Status Window. Now you will have to wait until the Window closes.
Step 5: Once the installation is finished, click “Finish” to close the installation wizard.
That’s it. Your Samsung device driver is now successfully installed on your computer.
Install Guide for Samsung Galaxy A3 (2017) ADB Driver
Step 1: To get started, download the driver and extract it on your desktop.
Step 2: Now, open Device Manager > Action > Add legacy hardware.
Step 3: Next, click “Next” in the Add legacy hardware wizard.
Step 4: Now choose “Install the hardware that I manually select from the list (Advanced)” and click “Next“.
Step 5: Once done choose “Show all devices“, click “Next” and select the extracted file manually from your computer.
Step 6: Now to start installing your new hardware, click “Next” again.
Step 7: Click “Install” in the Windows security prompt window.
Step 8: Next, click “Finish” to complete installation.