Error message when opening Internet options on IE7

[Renderman21]

Recently, I've encountered a really annoying problem. Whenever I go into Tools menu and then Internet Options on IE7, I get the message "This operation has been canceled due to restrictions in effect on this computer. Please contact your system administrator." I am the administrator of this system. What is the problem with my computer?

[mv]

Somebody may have locked a lot of features on your computer. To fix it, you are going to log on as an Administrator and change your user log on to being an administrator as well. You may also have to change the Group Policy settings. I think you should call a techie person because its not at all simply. Its full of headache and risks.

[Archibald]

There should be some kind of service which has been recently disabled or changed or corrupted. Check any services you have recently changed. If yes then reverse the process.

[Howitzer]

Also look at this thread for getting better results.

This operation has been cancelled due to restrictions in effect on this computer. Please contact your administrator.

[Yitzchak909]

This can also be caused by virus activity. Update your virus scanner and scan for viruses. Also see What is Rootkit. How to remove it. and http://forums.techarena.in/guides-tu...=trojan+remove