WordPress backend wp-admin running extremely slow

If your WordPress backend wp-admin running extremely slow and if it takes really long or forever to load then below troubleshooting will surely help:

1. There must have been a parameter that was not completed. Hence, manually call /wp-admin/upgrade.php through browser.
2. Try decativating all plugins. If that resolves the issue, reactivate each one individually until you find the culprit.
3. Try switching to the wordpress default theme ( Twenty Fifteen theme ) to rule-out a theme-specific issue.
4. Download a fresh copy of WordPress and replace your copies of the /wp-admin/ and /wp-includes/ directories with fresh copies from the download.
5. Access your WordPress database via phpMyAdmin (most hosting providers offer this in their control panel), check all of the tables, and choose “Optimize tables” from the pull-down menu.
6. Try installing the Heartbeat Control plugin.
7. If nothing else works, try these methods to increase PHP’s memory allocation:
   1. If you have access to your php.ini file, change the line in php.ini
      If your line shows 32M try 64M:
      memory_limit = 64M; //Maximum amount of memory a script may consume
   2. If you don’t have access to php.ini try adding this to an .htaccess file:
      php_value memory_limit 64M
   3. Try adding this line to your wp-config.php file:
      Increasing memory allocated to PHP
      define(‘WP_MEMORY_LIMIT’, ’64M’);
   4. Talk to your hosting service provider.

Please don’t forget to comment if this saves your day 🙂