upgrade and mover Nero to new drive

I have Nero 10 multimedia suite and the serial number. I would like to upgrade to Nero 2015 Platinum, but would also like to change the installation drive from C to D (I'm running out of space on C). What is the best way to go about this, and do I need any documentation other than my Nero 10 serial number? I can't find a straightforward answer anywhere online.
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