Using Regedit to change things in the registry is fully supported by Microsoft. They even tell you to do it in many, many support articles. Also, I have Admin

Using Regedit to change things in the registry is fully supported by Microsoft. They even tell you to do it in many, many support articles. Also, I have Admin rights on my computer because I own the computer. If somebody else owns the computer than they are welcome to set the settings however they like to. So I don't really see the problem.