If you have a lot of time and fast network connection you can download ~ 64 Gb and install BF4 on your new hdd .
But there is one better method to do that .
Just copy your BF4 folder to new hard drive .
By default it is programfiles (x86 ) / origin games / Battlefield4 , but you can verify your game destination folder in origin settings .
Next step start origin . Make sure that game installation folder in settings is the same that your Battlefield4 on new hdd .
Then just press download button in origin on Battlefield 4 .
After installation right click in origin on Battlefield 4 and press Repair Game .
After file verification you can enjoy your game 🙂
