I just saw your CN post. Before you can get SGP to run you have to have your mount and laptop communicating. I think I'd recommend leaving SGP out of the equation until you are sure of the connection.
I suggest you go to http://www.celestron.com/support/manuals-software and then select "Drivers and Software", scroll down to Celestron Firmware Manager, click on it, download CFM_2.3.7111.zip, and unzip it. This is the official Celestron software to upgrade your hand controller. Connect everything up, power on your mount, run the Firmware Manager and see if it can find your mount. Based on what you've said, it probably won't.
You need to make sure you have the right Celestron serial cable (http://www.celestron.com/browse-shop/astronomy/accessories/cables/nexstar-rs-232-cable) Cables for Meade, iOptron, etc. may outwardly look the same but the pin connections may be different, and not work. Your laptop probably doesn't have a RS-232 port so you need a USB to Serial adapter similar to what is describe here: http://www.usconverters.com/index.php?main_page=page&id=62 I particularly like the 5 steps mentioned on that page. It seems the most common adapters are Prolific with many knockoffs. It is not uncommon for the software to fail to install so I'd recommend getting your adapter somewhere local where it is easily returned. I would expect that Windows 10 would recognize the new adapter, but if your five year old laptop is running the original operating system you will probably have to install software that only comes on a CD. If you have online storage like Dropbox you might be able to upload the software there via a public computer in something like a library or over at a friend's house.
Once the Celestron Firmware Manager recognizes your mount, ASCOM should be able to see it too. Do make sure you have installed the ASCOM Celestron Unified Driver from http://ascom-standards.org/Downloads/ScopeDrivers.htm. At that point SGP should be able to connect to your mount.