Microsoft on Thursday unveiled a newly designed logo featuring a new symbol and a new type face. The new logo shows the symbol for Microsoft’s Windows operating system – four squares in red, green, blue and yellow – positioned to the left of the name Microsoft in grey in a font called segoe. Microsoft said it made the change in advance of a wave of product launches that will include new versions of Windows 8, Windows Phone 8, Xbox services and Office. “It’s been 25 years since we’ve updated the Microsoft logo and now is the perfect time for a change,” the release said. The product launches represent a new era for Microsoft, the company said. “So our logo should evolve to visually accentuate this new beginning.” The logo is already in use in Microsoft stores in Boston, Seattle and Bellevue, Washington. The company said it would be used in all of its stores over the next few months and all of its television ads globally.