Administrators have the ability to protect pages so that they cannot be edited, or images so that they cannot be overwritten, except by other administrators.
These abilities are only to be used in limited circumstances as protected pages are considered harmful.
Admins must not protect pages they are actively engaged in editing, except in the case of simple vandalism.
If a page is protected because of an edit war, please do not ask for it to be protected in some other version than it currently is. A protection is not an endorsement of the current version. Instead, go to the talk page and attempt to resolve the dispute. Non-admins can propose changes to protected pages on the talk page.
If an administrator moves a protected page, the page will be protected at the new location, and the redirect will be unprotected at the page's original location.