bootnode : The term 'bootnode' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1 + bootnode -genkey boot.key + ~~~~~~~~ + CategoryInfo : ObjectNotFound: (bootnode:String) , CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException
It looks like you don't have the bootnode command installed on your system.
I think you installed only the standard geth client. To run a bootnode you need do install the alltool version in order to have the bootnode command available.
You can find it there : enter link description here