That makes more sense, thanks. Still can't get powershell to compare in away that makes 1.1.12805.0 be less than 1.1.13701.0, but at least manual inspection mak

That makes more sense, thanks. Still can't get powershell to compare in away that makes 1.1.12805.0 be less than 1.1.13701.0, but at least manual inspection makes sense now: # On old hyper-v vm: Get-MpComputerStatus \ |where -Property AMEngineVersion \ -gt [version]1.1.13701.0 \ |select AMEngineVersion AMEngineVersion --------------- 1.1.12805.0 I guess one out of two isn't bad...