When you have uninstalled the game you also need to remove the registry files by deleting them manually. Until you remove the registry keys, you will face the installation problems while installing it again. So you can go to the registry folder from the registry editor and then delete the game files from there.
For Windows 32bit:
Code:
HKEY_LOCAL_MACHINE\SOFTWARE\Electronic Arts\EA Games\Battlefield Play4Free
For Windows 64bits:
Code:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Electronic Arts\EA Games\Battlefield Play4Free
From this, you have to delete the folder of Battlefield Play4Free. After removing the registry files and make a restart. Now you can install game once again.
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