This feature will update the information for each forum including last post information, thread count, and post count. This operation can be carried out after a mass moving or pruning of threads and posts.

This will go through every user on the forums and determine their correct user title.

This will update user names everywhere they occur on your forums. This operation may need to be done after changing a user's name in the AdminCP.

This will update the post count for each user by counting how many posts they have in the database. If someone has artificially inflated or deflated post counts by editing profiles in the AdminCP, then this procedure will reset the post counts to their true values.

This will fix any broken user profiles.

This will update the forum counters (post counts) and also check for orphan moderators. You may need to do this after merging or deleting threads or posts in your forums.

This will update the thread counters including last post information, reply count, and view count. You may need to do this after moving or pruning threads or posts.

This will search the forums for threads that are similar to each other. To show similar threads you need to enable the option in the vBulletin options. If you want your forums to search for similar threads when a new thread is posted (rather than having to update this counter later), then you need to enable the option on this page.

This will need to be done after changing the max/min search word length in the vBulletin options.

This will rebuild the information that is displayed on the vBulletin Statistics page.

vBulletin doesn't parse vB code in posts each time they are displayed. Instead the parsed posts are saved in the post_parsed table. This reduces the processing time needed to display a post. Updating this counter will rebuild the parsed posts. This needs to be done after changing vB codes or posting allowances.

Sometimes duplicate threads are created during the posting process. Updating this counter will remove those duplicates.

Updating this counter will rebuild the style structure.

Rebuilding thumbnails is necessary after changing the thumbnail settings in the vBulletin options.

You will need to update this counter if you change the default reputation value in the vBulletin options.

This will delete any threads that belong to forums that no longer exist.

This will delete any posts that belong to threads that no longer exist.