During this time the system may reboot a couple of times, don’t “Press any key to boot from CD or DVD" when this happens as it will slow everything down. Let Windows reboot as normal.
Once the file install is complete you will be presented with another black screen with the message, “Setup is preparing your computer for first use." There is more work for the computer to do, so it may be a few seconds until it moves on.
The next dialog box is where you enter your user and computer name. Enter something meaningful and click Next. Password time, enter one if you want, or leave it blank, the choice is yours.
The next screen is for the product key. Here you have two options. You can enter the key here and allow Windows to automatically activate once online, or ignore it and enter it later. As you are installing afresh and have nothing to roll back to if you don’t get on with Windows 7, I would do this. The other option is to leave it and enter it later. This is only normally useful for when you’re upgrading a system.
The next screen is the security screen where you choose whether or not to allow Windows to automatically update itself. I suggest setting this to Use recommended settings for now. This will allow the operating system to download updates and fixes as they become available.
Next are the time zone, then network settings. These are pretty straightforward. Most users should choose Home Network when prompted, unless you’re building a system at your place of work.
With the decision making over with, the next screen should be the Preparing your desktop one, which will probably stick around for a minute or two while the desktop is prepared.