Unfortunately, I do high-level I.T. work all day during the week. I see a lot of stuff get really jacked up by people who thought they were going to fix a problem by following advice that they read on the Internet, or got from a friend, or read in a magazine, etc. Often it causes security holes that techs end up having to go back in behind the user's path of destruction and fix.
Obviously TGO is not a forum about computer repair. I would take anything read here with a grain or two of salt and not try any proposed fixes without researching the heck out of them first.
Remember, if you try a fix proposed by someone on the Internet, you're doing it at your own risk. Chances are that person isn't going to come to your rescue and fix your computer for you if it goes wrong.
And chances are they wouldn't come fix your problem for free anyway.
Caveat emptor.