Where can Win8.1 be updated

On August 14, 2013, Microsoft officially announced that Windows 8.1 will start globally through the Windows App Store on Windows 8 from 7:00 pm Beijing time on October 17, 2013. Update push for Windows 8 users for free. In addition, Microsoft will distribute the Windows 8.1 RTM version to OEM hardware partners at the end of August. MSDN/Technet subscribers will be the first to get the Windows 8.1 RTM version.

Windows 8.1 is Microsoft's launch of Windows 8 in October 2012, Microsoft began to develop Windows 8 update package. In the project codenamed "Blue", Microsoft will standardize operating system upgrades to provide users with more regular upgrades. Windows 8.1 has a built-in role to pave the way for future Windows 9.
In the preview version of Windows 8.1, Microsoft released several important updates for Windows 8. The Windows 8.1 preview has been released at the Microsoft Build 2013 conference on June 26, 2013. Users can go to Microsoft's official website to download the experience. Windows 8 users can get updates through the Windows Store.

Windows 8.1 will be available in two versions and will be upgraded for Windows 8 full and Windows RT. It is rumored that Microsoft has made a series of improvements in Windows 8.1 Windows, making it adaptable to smaller mobile devices. And Coller's speech justified this point, she stressed: Windows 8.1 will be perfect for the smallest size tablet to a large desktop.
Windows 8.1 Windows UI will have 4 sizes of tiles. Windows 8.1 Windows UI interface wallpaper can finally be synchronized with traditional desktop wallpaper. Windows 8.1 is equipped with the latest IE11 browser, which consumes less power.