Possible suggestion... As a Configuration Item:
Discovery Script:
==================
$Test = reagentc /info | findstr "status"
if ($Test.Replace("Windows RE status: ", "").TRIM() - eq 'Enabled')
{ write-Host "Enabled"}
Else
{ write-host "WinRe is not Enabled"}
===================
Remediation Script (if you choose to remediate...):
===================
$Test = reagentc /info | findstr "status"
if ($Test.Replace("Windows RE status: ", "").TRIM() - eq 'Enabled')
{ write-Host "Enabled"}
Else
{ $EnableIt = Reagentc /Enable }
===========
"What Means Compliant" string of == Enabled
=======Optionally==========
Make the CI an "Application type" CI, and for Detection Method, make it script based, and use a script that will only write-host something if the target fits your criteria, like perhaps you don't want to enable WinRe if the device is VMWare.