Administrators are editors who are trusted with access to certain restricted technical features on a particular wiki.
Step by Step
How do you become an admin?
Every founder of a wiki is automatically granted admin access on the wiki they founded, in addition to bureaucrat status.
Other users may also be granted admin access by a bureaucrat. This usually includes the founder unless they voluntarily remove their bureaucrat status, have it removed via automatic wiki adoption, or if a staff member removes it.
Deleting a page
Click the down arrow on the "Edit This Page" button to activate the drop down menu. Select "Delete".
You will see a page with a menu of preset "reasons" for deletion, a box to enter any additional reasons for deletion, and the option to follow the page if you wish to know if anybody tries to recreate it. Fill in the deletion reason and click the "delete" button
If something looks like a candidate for speedy deletion but has a page history, you must check the history before deleting it. The revision you are looking at could be just a vandalized version of a real article. After you have deleted it, check if it has a talk page and delete this too. If the page is being deleted because it should not exist, check that nothing links to it to prevent it being created again. If the page was listed on a requests for deletion page, follow the relevant guidelines on your wiki, which may include archiving the deletion discussion.
Look at each revision separately, and choose whether to undelete all revisions (the default) or selected ones.
Click the restore button which appears on the confirmation page.
Undeletion occurs as soon as you click this; there is no further confirmation screen or a place to type a reason.
If you do not undelete all revisions, the log will record how many you did restore.
If a page already exists but you want to undelete previous revisions of it, go to the page history.
Click to view/restore the deleted versions,
Click the restore button once you have chosen what you wish to undelete
Merging page histories
Merging page histories is a means of fixing cut and paste moves in order to maintain a complete edit history. Note: This action can be reversed, but doing so may take a long time, especially when the page has a long history.
Links in the block log or Special:BlockList allow you to unblock or change the block if an error is made.
Reverting undesirable edits
Any user can revert a page using the "Undo" option in the page history. Use the edit summary to explain why the edit is being undone.
Administrators and users with rollback status can also revert the edits of one user and restore the page to the last version by the previous author.
Click rollback on the page history, the user contribution list, or on the diff page.
Reversions are given the automatic edit summary Reverted edits by X to last version by Y.
Because rollbacks skip the step of adding a custom edit summary, they should be used for obvious vandalism only.
Admins are automatically Chat Moderators.
Chat moderators have the ability to kick other users from the chat. This can be done either from their Contributions page or through the main chat.
To identify a chat moderator, a star will be next to the name in the rail.
Wiki founders automatically have bureaucrat rights in addition to administrator rights.
Other users may be granted the bureaucrat right through wiki adoption or by another bureaucrat on the wiki.
The only powers a bureaucrat has is to grant rollback, chat moderator, administrator and bureaucrat status to other users, and to take away rollback, chat moderator or administrator privileges. This can be done with the User Rights special page.
Only Wikia Staff, Wikia Utilities, Helpers and the user themselves can remove bureaucrat status from a user, usually at the request of the user, or, in the case of inactive users, at the request of the currently active community, if a user is denied from adopting a wiki or if abused.