Where do I create the keystore?

All documentation I have found states I need to be in my build folder in the command prompt to run the keytool. I am running my command prompt as administrator, yet when I am in the build folder and type in the keytool info from the doc, it returns a statement that “'keytool is not recognized as an internal or external command.” I also tried this from the jdk folder (where I have successfully created them in the past). What am I doing wrong?

You can run it whereever you like and copy the .keystore file into your project’s Build/Android directory. keytool.exe is in your jdk/bin directory and likely just is not in your PATH.