If you're using powershell to run the following command:
certutil -config "IssuingCA.windowsnoob.lab.local\windows noob Issuing CA" -ca.cert windowsnoobissuingca.cer
You'll get an error for too many arguments. I believe due escaping from the '\' symbol. You may want to update the tutorial to clarify that it needs to be a command prompt and that using powershell will not work. I wasted a good hour on this trying to figure out why the command was giving me the 'too many arguments' error.