On the windows 7 registry main key without permission to modify the home page was hijacked solution

To tell the truth, I learned a lot in the vision, I have been diving, and have been too lazy to say thank you, but this can not be discussed Reasons for posting in the district. I just changed the system yesterday and I met an annoying homepage hijacking. I changed the registry and found that the main key value under the IE key has no permission to modify. I found it on the Internet for a long time, but I also saw a post with the same illness in the distant view. But there is no workaround. Maybe someone solved it, but I didn't see it. If someone sent it, delete this post.
Workaround: Right click to view the user with read permission under the main key value, assuming "123", right click on the IE primary key, ie "Internet Explorer" key - permission - add "123" check the full control . Advanced - Owner - 123, OK. This gives you permission to the Main button.
The principle is very simple, the rogue home page in the IE primary key to create a new controller at the same time inject the main key, then the permissions are set to read-only, after determining the inheritance relationship, the new controller in the IE primary key and other controllers of the Main key value By deleting it, it becomes the only situation in which the owner can only read it.
Finally, I feel that this is a bug, because I have never encountered this problem under XP and Vista.