Board Thread:Skyrim/@comment-128.62.76.226-20130924191221/@comment-121.219.143.98-20150106021041

It was a steam update error, if you owned skyrim when the update happened it downloaded dawnguard onto your pc...because the lucky people that had finished the update had the files, steam couldnt remove them, and thus they got dawnguard for free, i count myself as one of those lucky guys ;)