I recent bought Maya 2016 and have had a lot of problems with it crashing so was really pleased when I saw there was a service pack update. The problem is I need to uninstall my current copy. I've tried to follow the instructions on Autodesk's site (http://knowledge.autodesk.com/suppor...B122D-htm.html) but keep getting the same "command not found" as everybody else. Does anybody have any suggestions about how to do this please?

Thanks in advance