Microsoft says its new Windows 10 operating system will be coming 'this summer ' in 190 countries and 111 languages . In a blog post late Tuesday , Microsoft executive vice president Terry Myerson said the operating system designed for multiple devices would also have a 'small footprint ' for connected devices . 'We continue to make great development progress and shared today that Windows 10 will be available this summer in 190 countries and 111 languages , ' he said . Scroll down for video . Microsoft is yet to provide a precise date for the launch of the Windows 10 operating system , which is aimed at powering PCs , smartphones and also connected devices such as bank machines and medical equipment . New operating system will run on the 'broadest types of devices ever ' . Cortana personal assistant runs on the desktop . Various app stores merged into one platform , called the One Store . Return of the Start Menu , which had been removed from Windows 8 . Users can create multiple desktops to keep things organised . Microsoft has yet to provide a precise date for the launch of the operating system , which is aimed at powering PCs , smartphones and also connected devices such as bank machines and medical equipment . 'For the first time , a new version of Windows for small footprint IoT ( Internet of Things ) devices will be available -- for free -- when Windows 10 launches , ' Myerson said . 'Windows 10 will offer versions of Windows for a diverse set of IoT devices , ranging from powerful devices like ATMs and ultrasound machines , to resource constrained devices like gateways . ' Microsoft is also working with fast-growing Chinese smartphone maker Xiaomi to test Windows 10 on its devices . The US tech giant also announced partnerships with Chinese-based Tencent and Lenovo to help customers in China upgrade to Windows 10 . The company also said Tuesday that Windows 10 will allow users to sign in to a device without a password by using biometrics , including facial recognition . It is also making its biggest push into the heavily pirated Chinese consumer computing market this summer by offering free upgrades to Windows 10 to all Windows users , regardless of whether they are running genuine copies of the software . The move is an unprecedented attempt by Microsoft to get legitimate versions of its software onto machines of the hundreds of millions of Windows users in China . Recent studies show that three-quarters of all PC software is not properly licensed there . Windows 10 will include a new Xbox app to allow users to easily share with friends , and is extremely similar to the firm 's Xbox One console system . Terry Myerson , who runs Microsoft 's operating systems unit , announced the plan at the WinHEC technology conference in Shenzhen , China . 'We are upgrading all qualified PCs , genuine and non-genuine , to Windows 10 , ' he said in a telephone interview with Reuters . The plan is to 're-engage ' with the hundreds of millions of users of Windows in China , he said , without elaboration . Microsoft said in January it would offer free upgrades to Windows 10 for users of Windows 7 or later in an attempt to hold onto users and make up for lost revenue by selling services such as Office over the Internet . Microsoft is working with Lenovo Group Ltd , the world 's biggest PC maker , to help roll out Windows 10 in China to current Windows users , Myerson said . It also is offering Windows 10 through security company Qihoo 360 Technology Co and Tencent Holdings Ltd , China 's biggest social networking company , which will build a Windows 10 app that will work on smartphones and PCs for its popular QQ gaming and messaging service . QQ has more than 800 million users . Lenovo said in a statement that it will make phones running Windows software , available through China Mobile , sometime later this year . Microsoft also said it is working with Chinese handset maker Xiaomi Technology Co Ltd - which generally uses a form of Google Inc 's Android on its devices - to offer some customers a test version of Windows 10 on their smartphones . '
Microsoft has yet to provide a precise date for the launch . Will power PCs , smartphones and also connected devices such as bank machines and medical equipment , along with the firms Terry Myerson Once console .