If youre not particularly computer savvy, you may want to get an IT person involved.  Its not difficult, but it takes lots of steps to make it all happen.  I went and did this for another local tax office using ProSeries 2 summers ago, no way he could have done it all on his own.

https://proconnect.intuit.com/community/install-products/help/installing-proseries-on-a-new-computer...