"...if you have say remote desktop sharing either on, or the feature turned back on if someone can log in your system, once they pull up your desktop they can simply right click on the computer icon and pull up the technical splash page for your computer which says who the computer is registered to..."
>>>Do you happen to, know if there is there some way to turn it off so it can't be used? I suppose I could delete it/them. I found Windows Remote Assistance program on my computer. I have an HP Pavillion 6213w which I bought a couple months ago and I don't know if there are any other other remote viewing programs specific to it (which I couldn't find yet).
As far as the site I had the situation with, I wonder if I were to get a different ISP and re-register with a different user name would they (the site itself) not be able to know I was the guy they hacked (if they did)?
If you want to see where the registered user name is in the registry or for that matter change it then read this link.
The process is painless.
As to logging onto a website, when you log on or even visit any website your browser and the site server exchange information. Things like your IP address which we know does not lead to your home address. A complete list of the data exchanged can be found here.
Note, there is nothing all that personal in that mess of stuff. If I log on to this forum from home my IP reflects my general area of the SE Cleveland, Ohio suburbs. However, if I drive a few miles down the road and log on from my place of work I look to be in Virginia because our company servers are out of Virginia even though I am still in the Cleveland suburbs.
Even remote desktop sharing isn't all that easy unless someone knows your log on and password for your personal computer. However, it is wise to keep remote desktop sharing turned off (it should be by default).
If you are running a broadband internet connection and are paranoid about all this then buy a cheap wired router and shove it between your system and the cable or DSL modem. Then you have what amounts to a very good hardware firewall.