How I can enable my registry settings

Bonjour, I am using Win 7 I am facing an issue of my registry settings. It couldn't be accessible and when I search 'regedit' in start menu there shows a message ' you registry settings has been disable by the administrator' but I am using this PC individually and It is not connect with any networking terminal just using Internet that is my own using individually as well.

so please let me know how I can enable my registry settings...