The contents of the file are listed below: This file gives some insight into the application of Redpill. A remnant of the application of Redpill is present in this build in the form of a 'redpill.log' file in the System32 directory. While the image that was distributed by Microsoft has all Metro features enabled, internally it still uses the same mechanism of (un)locking Metro features through Redpill as seen in earlier builds. This build was the first build released to the public to have all new Metro features working out of the box. Through the use of external tools (such as ShowHideControls), it is possible to select the option to keep all data including installed applications, allowing a full upgrade to take place without issues.
It is not possible to fully upgrade to this build through normal means as the only available options are to keep the user profile's files or perform a clean installation.