Internet Protection Mode setting gets UNCHECK automatically in IE 11

Hi Experts,

In some of our machine where IE 11 installed we are unable to check mark the internet Protect Mode setting (Internet Option - Security tab ). It gets UNchecked automatically when we reopen the IE 11. On other versions of IE 10/9 we can check/ UNcheck the Protection Mode Setting.

We have not pushed any GPO for IE 11 Protection mode. And We do not want to push it through GPO because Some Devlopers do not need Protection Mode.

Even i am not able to degarde IE 11 patch from Win 8.1 OS machines.

Please suggets.....

Thanks