The command cscript slmgr.vbs /skms kms.lotro.cc is part of a series of commands used to activate Windows by connecting to a specific KMS (Key Management Service) server Microsoft Learn This specific server, kms.lotro.cc
: By running this, you are telling your PC that this external server is its "boss" for licensing. cscript slmgr.vbs skms kms.lotro.cc