By `registration process` I presume you mean the input of the activation key. I agree the key is complex (to minimise piracy) but it is far from hard or a long function to input the code. The main thing to remember is to put it in exactly as it is shown and (if I remember correctly) to use the <Shift> key for upper case rather than the <Caps Lock>.
Online registration of the product is equally simple and the support (generally) is very good.
You should also remember to make a recovery disk, especially if you download rather than buying the CD, as it is essential in the event of a failure. In fact a recovery disk is always valuable as it allows the original (if you have it) to be kept safe from damage.