Title: reinstall error “Already Installed”
Last modified: August 19, 2016

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# reinstall error “Already Installed”

 *  [lukehunt](https://wordpress.org/support/users/lukehunt/)
 * (@lukehunt)
 * [16 years, 9 months ago](https://wordpress.org/support/topic/reinstall-error-already-installed/)
 * I thought it would be easy to reinstall wordpress and in the process update to
   2.8.4. But I get the following error:
 * ‘You appear to have already installed WordPress. To reinstall please clear your
   old database tables first.’
 * I deleted the database from my server and added a new one, but that didn’t help.
   So I tried reinstalling version 2.7 again.
 * I tried to delete all the wordpress files, but my guess is I’m missing one that
   tells the installer that I’ve already installed WordPress. I’m guessing this 
   because even when I don’t change the wp-config file (so the installer doesn’t
   have my login or database name) I still get the already installed error.
 * I’ve searched the Forum, but cannot find anything. Please Help! Thanks.

Viewing 1 replies (of 1 total)

 *  Thread Starter [lukehunt](https://wordpress.org/support/users/lukehunt/)
 * (@lukehunt)
 * [16 years, 9 months ago](https://wordpress.org/support/topic/reinstall-error-already-installed/#post-1196291)
 * This checker looks like my problem:
    I cleared the browser’s cache with no luck.
   So far, I haven’t found where the wp cache is, and searching the forums for “
   clear cache” hasn’t helped…. any advice??
 * is_blog_installed() X-Ref
    Test whether blog is already installed.
 * The cache will be checked first. If you have a cache plugin, which saves the
   
   cache values, then this will work. If you use the default WordPress cache, and
   the database goes away, then you might have problems.
 * Checks for the option siteurl for whether WordPress is installed.
 * return: bool Whether blog is already installed.

Viewing 1 replies (of 1 total)

The topic ‘reinstall error “Already Installed”’ is closed to new replies.

## Tags

 * [reinstall](https://wordpress.org/support/topic-tag/reinstall/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 1 reply
 * 1 participant
 * Last reply from: [lukehunt](https://wordpress.org/support/users/lukehunt/)
 * Last activity: [16 years, 9 months ago](https://wordpress.org/support/topic/reinstall-error-already-installed/#post-1196291)
 * Status: not resolved

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