Can't Remove IE Maintenance settings from group policy

Hi,

In group policy under IE Maintenance I configured some settings like home page and proxy settings etc, now I removed all settings from group policy, I cleared every thing but still I can see the IE settings under group policy.

1)automatically detect settings Disabled
2)automatic browser configuration Not configured.

Now the problem is I am giving some proxy settings in IE manually when I restarted the system proxy settings are getting empty and again I have to give them.

Please tell the procedure to remove IE Maintenance completely from group policy.

can anybody please help me to solve this issue.

Thanks in advance for your valuable support.