Recovery

https://technet.microsoft.com/en-us/library/dd799242%28v=ws.10%29.aspx?f=255&MSPPError=-2147217396

https://www.terabyteunlimited.com/kb/article.php?id=587

https://social.technet.microsoft.com/Forums/en-US/9801aa0a-d876-4699-a31d-ba4ca08eea50/solved-how-do-i-prepare-windows-recovery-environment-on-windows-10-taking-backup-measures-on-your?forum=WinPreview2014Setup

A recovery partition is required for Resetting. Winre.wim is required to build a recovery drive.

ReAgentC

info
enable
disable

Reports RE Status, RE Location, and BCD Identifier.

Layout

Basic

\Recovery[\<GUID>]\
    Winre.wim
    ReAgent.xml
    boot.sdi

On MBR: System partition.

Install.wim

reagentc.exe /setosimage /path C:\OSMEDIA /target c:\Windows /Index 1