Already tried that.
Have you tried running BF3 and Origin as an administrator?
There's also someone's solution at BF's forum.
if you had problems after the last update or longer then that, try the following!
Rename your BF3 folder in documents!
Then Uninstall origin!
Then Uninstall Bf3 webbrowser plugin.(close browser 1st)
Delete after uninstalling Both folders
Download origin and after opening browser download and install browser plugin.
Install Origin.