Origin
After installing Bf3 origin has not enabled me to write the key and the key has already been used, although I have one account
Forum Discussion
I would recommend to re-install your Origin client. At first, download and install the latest version of Origin at www.origin.com/download (and make sure you have your Origin account ready as well). If that doesn’t helped, close the origin client and go directly to you origin folder C:\Program Files\Origin Games. Run the origin.exe in this folder with a rightclick -> run as administrator.
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Basti
