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I just asked a question and didn´t give out all the info I think is needed.I work with a 5D mark II and I cannot download the EOS Digital Solution Disk. The OS is Yosemite X 10.10.4It asks for administrator privileges.can anybody help me with this? I...

 I am trying to install the EOS Digital Solution Disk in my new  IMAC OS X and it requires administrator privileges.What is this?? How do I get those priviledges? I cannot work