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Administrators are able to protect a page to restrict editing or moving of that page, and remove such protection. Protection can be indefinite, or expire after a specified time.

• Full protection prevents editing by everyone except administrators. Fully protected media files cannot be overwritten by new uploads.
• Semi-protection prevents editing by unregistered contributors and contributors with accounts which are not autoconfirmed.
• Creation protection prevents a page (normally a previously deleted one) from being recreated (also known as "salting").
• Move protection protects the page solely from moves.
• Upload protection protects the file from reupload, does not protect the file page from editing.
• Pending-changes protection means edits are not visible to readers who are not logged in, until the edits are checked by a reviewer.

Any type of protection or unprotection may be requested at Wikipedia:Requests for page protection. Changes to a fully protected page should be proposed on the corresponding talk page, and carried out if they are uncontroversial or if there is consensus for them.

Except in the case of office actions (see below), administrators may unprotect a page if the reason for its protection no longer applies, a reasonable period has elapsed, and there is no consensus that continued protection is necessary. Contacting the administrator who originally protected the page is advised in unclear circumstances. A log of protections and unprotections is available at Special:Log/protect.