Title: Error 500 on running install.php
Last modified: August 19, 2016

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# Error 500 on running install.php

 *  [steve.slatcher](https://wordpress.org/support/users/steveslatcher/)
 * (@steveslatcher)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-500-on-running-installphp/)
 * Using Windows 7, Apache 2.2.14, PHP 5.3.2, MySQL 5.1.42, and all of these components
   work fine by themselves. WordPress 2.9.2. I followed the installation instructions,
   ensuring mod_rewrite is enabled, creating a database and editing wp-config.php.
 * When I try to load install.php into a browser nothing happens for a minute, and
   then I get a 500 error. I have full access to the machine, and have checked the
   server logs, but they are not much help. Access log simply shows I did indeed
   get a 500 error from the page, and nothing of relevance in the error log.
 * Any ideas what is wrong, or how I could diagnose the problem myself?
 * Many thanks.

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Thread Starter [steve.slatcher](https://wordpress.org/support/users/steveslatcher/)
 * (@steveslatcher)
 * [16 years, 2 months ago](https://wordpress.org/support/topic/error-500-on-running-installphp/#post-1419267)
 * I have solved my problem. I replaced localhost by 127.0.0.1 in my wp-config. 
   Not sure why – localhost works in most other contexts. But interestingly it also
   failed at the point of DB creation when I tried installing Joomla – that’s what
   gave me the clue!
 *  [th3duk3](https://wordpress.org/support/users/th3duk3/)
 * (@th3duk3)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/error-500-on-running-installphp/#post-1419544)
 * Hell yeah!! I’ve been trying to resolve this exact problem for the last 2 days.
   There are lots of posts about it, but you are the only person with a solution!
   You must share this with the world 🙂
 *  [Paul](https://wordpress.org/support/users/pcgrejaldo/)
 * (@pcgrejaldo)
 * [15 years, 12 months ago](https://wordpress.org/support/topic/error-500-on-running-installphp/#post-1419545)
 * Oddly enough… for some reason this issue is present in Windows 7. `127.0.0.1 
   == localhost` but for some reason, Win7 OS doesn’t recognize it that way.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘Error 500 on running install.php’ is closed to new replies.

## Tags

 * [windows 7](https://wordpress.org/support/topic-tag/windows-7/)

 * In: [Installing WordPress](https://wordpress.org/support/forum/installation/)
 * 3 replies
 * 3 participants
 * Last reply from: [Paul](https://wordpress.org/support/users/pcgrejaldo/)
 * Last activity: [15 years, 12 months ago](https://wordpress.org/support/topic/error-500-on-running-installphp/#post-1419545)
 * Status: not resolved

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