It's often a sign of a misguided rebrand when people continue to use a brand's old name (Elon Musk might want to take note ...

(See Office 2013, Windows Phone 8, Outlook.com, Bing, and the Windows 8 Surface tablets.) Today the company is moving even farther away from the old Microsoft with a brand new company logo.

Tom Warren is a senior editor and author of Notepad, who has been covering all things Microsoft, PC, and tech for over 20 years. Microsoft has filed a trademark for a mysterious S logo today.