I 2 mins and 30 seconds ago bought a trial key and tried logging in and you know what happened next (failed)
remove: - microsoft .net framework 4 client profile - microsoft .net framework 4 extended - microsoft visual c++ 2010 x86 redistributable - microsoft visual c++ 2012 x86 redistributable restart your pc, download the installationwizard from here run it as administrator. after the wizard is done, run windows update. And install all updates for .net & c++ restart