Its quite usefull to have this option ready for use when starting up your system and might want to solve some issue what so ever, here is how to silent install it from the CDdrive:

(RunOnceEx)

REG ADD %KEY%\001 /VE /D "Installing Recovery Console as Start-up option" /f
REG ADD %KEY%\001 /V 1 /D "%CDROM%\I386\WINNT32.EXE /cmdcons /unattended" /f

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