Increase PHP memory limit

More Information: http://drupal.org/node/207036

Check current memory limit
==========================
Look 'memory_limit' in phpinfo();


Change memory limit of php.ini
==============================
1. Go to C:\apps\php
2. memory_limit = 1024M ; Maximum amount of memory a script may consume (1024MB)
[in Resource Limits]


Restart IIS
============
1. Go to Run -> inetmgr
2. Right click on local computer and click 'All Tasks' >> 'Restart IIS'