Microsoft(MSFT) has long used its Windows software as a cash cow, but things are changing now that new CEO Satya Nadella has taken over, said Cheung.
The company is offering its new Windows 10 as a free upgrade for current Windows 7 and 8.1 users.
Cheung said this move marks a turning point for Microsoft as the company makes its products more easily accessible.
The Microsoft brand is now the third most valuable brand in the world, up from fourth place in 2014.
First published May 27, 2015: 4:11 AM ET
Methodology: This 2015 BrandZ ranking of the most valuable brands in the world was carried out by brand consultancy Millward Brown, which is part of the advertising firm WPP. It calculates brand value by using in-depth financial data alongside interviews with over three million consumers from around the world.
