Internet Settings Greyed Out?

I recently went into my security settings in Google Chrome (The same is in IE8) and had seen that the slider that adjusts the settings for restricted sites is greyed out and i cannot change it. I've seen on many forums that this can be fixed with a simple registry edit. The closest i've come is by going into regedit and accessing;mHKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionInternet Settingsones From there i'm confused. There are four sub-folders labeled 1 - 4 excluding a fifth folder called 0.Which folder do i access and edit or am i in a completely wrong spot? I am the Administrator. I have run multiple security scans. And also, my laptop is up to date with updates. Running Windows 7 Enterprise.32-bit i3 CPU