国外MDL论坛网友发现给Win8.1系统添加注册表键值即可立即获取Windows 8.1 update RTM更新，经检查更新包数字签名为2月23日，而Windows 8.1 update RTM 的完成日期就是这一天。
微软已于一周前编译完成 Win8.1 Update 2014 最新版 ，具体版本号为： 6.3.9600.17025.140214-1706
本次泄露的MSU独立更新包，大家在Windows 8.1正式版予以安装即可，该版本仍处于RTM Escrow阶段，并非最终的RTM版本。
We’ve hit an important milestone for Windows and for Microsoft—just 10 months after delivering on a bold, generational change in computing with Windows 8, our team is proud to share that we have started releasing Windows 8.1 and Windows RT 8.1 to our hardware partners. In many ways, this marks a new day at Microsoft, reflecting a number of rapid release firsts. Thanks, in part, to customer feedback and an unparalleled level of collaboration across product teams, Windows 8.1 is a significant update.
The Windows Team at Microsoft are still hard at work on Windows 8.1 as they develop at full speed towards their deadline date. Windows 8.1 is expected to hit RTM sometime this month, and recently build 9472 was compiled. The build was compiled on the 29th of July, just a few days ago as of typing this.