Microsoft reminds: Win8.1 preview version upgrades the official version to speed up the rhythm

I believe many readers of IT home have used the Win8.1 official version of the system, but there are still a small number of Win8.1 preview version of the user, this time, Microsoft is good again Advise, quickly upgrade the official version, Win8.1 preview version will expire on January 15, 2014, after the deadline, will not be able to use the system.
Microsoft official blog introduced: You are using the Win8.1 preview version of the user have not noticed, before the release of the preview version of the system, we have hinted that this is just a test experience system, does not support long-term use, For this reason, the Windows 8.1 preview/Windows RT 8.1 prevIEw preview system will expire on January 15th next year, so for users who use the preview system in this section, we again recommend updating to the retail version before the expiration date. Win8.1 system.
The specific upgrade method supports offline system image upgrade and online upgrade mode.
1, offline system image upgrade: you can refer to "Upgrade from preview to Win8.1 RTM, retain all personal information"

2, online upgrade method: use IE11 preview to open the following link: ms- Windows-store: WindowsUpgrade, you can use the online store to upgrade

Note: The installed desktop application and Modern application will be completely cleared, and the Modern application can be installed synchronously using Microsoft account.