The term '' is not recognized as the name of a cmdlet, function, script file, or operable program

ipconfig : The term &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 + ipconfig /flushdns + ~~~~~~~~ + CategoryInfo : ObjectNotFound: (ipconfig:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException