I installed a pure Drupal on Windows/IIS6 share host, and uploaded several modules in (sites/all/modules). When I want to enable some module together, my administrative pages become white, but front page and other pages work normally.


Take a look at The White Screen of Death (Completely Blank Page) to learn more about the WSOD and how to troubleshoot it.

  • is there possible this occur because my host is too weak? on Windows/IIS6 php2.5.6 ? – AmirHossein Sep 15 '11 at 19:58
  • or mySql is weak ... :( – AmirHossein Sep 15 '11 at 20:03
  • It sounds like the PHP memory limit on the server is too low. Did you read that article and try the changes it suggests? – Laxman13 Sep 15 '11 at 20:17
  • yes, I read!I want to increase memory_limit.in this href="drupal.org/node/31819" on line 8 have written upload my own php.ini file!I don't know what write in file?or I don't know what have php.ini include?:( – AmirHossein Sep 15 '11 at 20:40
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    If you have chosen to use a php.ini file, put something like this in the file: memory_limit = 64M, then save it and put in your root directory (if on shared hosting). You may need to increase the number depending on how much memory you are using – Laxman13 Sep 15 '11 at 21:35

I guess your display_errors in php.ini is Off, enable it and you'll see your errors instead of white screen

  • my control panel is Plesk.How to set display_error on? – AmirHossein Sep 14 '11 at 18:43
  • do u have command line access? if yes then you can find your php.ini at /etc/php.ini – Firdous Sep 15 '11 at 8:45
  • or /etc/php5/apache2/php.ini – Firdous Sep 15 '11 at 10:34
  • no, I have not access :( – AmirHossein Sep 15 '11 at 17:15
  • follow the link by laxman13, thats a better solution, you can set this in drupal installation as well – Firdous Sep 15 '11 at 18:18

Check if there is any space in the top of module file before <?php.


It's definitely not the best idea to work with Drupal on IIS in first place, however for situation with white screen you've described - I'd say it looks like it's not enough resources (RAM) dedicated to PHP / Drupal.

Solution for this either to increase RAM available for PHP / Drupal or, as option, enable modules via Drush, not admin interface. Thing is that Drush not working that well on Win / IIS platform.

Try checking the normal windows error log if IIS or PHP throw an error.

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