It requires a registry hack.
Navigate to the key:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\EA Games\Battlefield 4
Right-click on the Battlefield 4 key, select New->Key.
For China Rising, call it
Xpack1, for Second Assault, call it
Xpack0, for Naval Strike, call it
Select the newly created key, right-click it, select New->String Value, call it
Installed, and then set its value to
True. Note that the key names and values are sometimes case sensitive, so enter them exactly as I have written them here.
Your registry structure will now look like:
HKEY_LOCAL_MACHINE -- SOFTWARE -- Wow6432Node -- EA Games -- Battlefield 4 -- Xpack0 -- Installed = True -- Xpack1 -- Installed = True -- Xpack2 -- Installed = True