Update: Microsoft has issued a response.
Head over here to read the follow-up story explaining why this occurred. Read below for the original story.
Over the last couple of days, I have received two copyright infringement notices from Microsoft regarding videos I have uploaded in the past of their
Windows 8 operating system. I'm not the only one receiving these copyright claims either, Scott Hanselman who created the super helpful "How to use
Windows 8.1 guide" has also received a copyright claim, ultimately taking his video down... he's a Microsoft Employee too.