First of all, connect your USB cable to your PC from your Android device. The smaller end of the cable which is called ‘micro USB’ goes into your device while the other end is inserted into your PC’s USB port.
Now, you have to click the ‘Start’ menu button which is displayed on the bottom left corner of your computer’s desktop. There will be many options which will pop-out. Select ‘Windows Media Player’ from those options.
After opening your WMP, you have to select the ‘Sync’ tab.
You need to click and drag all the media files (which you want to sync to your Android) to the ‘Sync List’ which is in the ‘Sync’ tab.
Then, click ‘Start Sync’ in order to sync the selected files in the WMP to your Android.