I would skip CPU and DSP updates for now, get familiar with the scanner, play and have some fun for a bit. Start by checking the RR data base for your zipcode, see what you want, then after installing ezscan update the library, then go to library import tab, select the "preferred" method (not zip code as that puts a lot of stuff you may not want to listen to on your scanner and slows down the scanning speed causing you to miss stuff.) , now pick and chose what you want to monitor. Import them, I recommend analog and trunking be separated into different scan list, And different trunking systems also separated into different scanlist or you can do all that later.
Use a memory card reader for the next step as it is 10 times faster then the USB cable, Now select prepare sd card from upper left drop down, check off import data and library, when done EJECT the card via windows Before you physically remove from the card reader,
Put the card back in the scanner and power it on. Select "scan" when it appears on the display.
Let it scan and enjoy it, now you can work on tweaking what you imported into ezscan and getting the comport driver working so you can update the DSP and CPU firmware and clock, this must be done via usb cable.