Decide what to do with 'Reference/Troubleshooting'

Site configuration, module and installation issues
Most everything here is outdated. For example, the clean URL information is now available at https://www.drupal.org/docs/administering-a-drupal-site/troubleshooting-... and https://www.drupal.org/docs/7/configuring-clean-urls/enable-clean-urls.

Still to check:

• Webhosting issues. This page has recent comments
• Disabling or enabling modules manually in the database
• How to fix "The following module is missing from the file system..." warning messages
• Module/theme name collision

In summary, I have looked at all the remaining pages. The only pages that I think that might have something useful are:

1. Webhosting issues. This page has recent comments
2. Disabling or enabling modules manually in the database
3. How to fix "The following module is missing from the file system..." warning messages
4. Module/theme name collision
5. Resetting the administrator password with a PHP file (Drupal7)
6. Resetting the administrator password with sql-query (Drupal 7)

As for the phpinfo() page, I think that needs to go somewhere else than the 'requirements section'. I have been concerned that the requirement pages are becoming cluttered with 'how to' information. So, that needs a bit of a think.

The php info page is now at https://www.drupal.org/docs/administering-a-drupal-site/troubleshooting-.... In other words it migrated from one troubleshooting guide to another.

Module/theme name collision is not needed. This information is included in the how to for creating a module and theme.

https://www.drupal.org/docs/develop/creating-modules/naming-and-placing-...
https://www.drupal.org/docs/develop/theming-drupal/defining-a-theme-with...

How to fix "The following module is missing from the file system..." warning messages also moved to 'Troubleshooting Drupal'.

I went through the following sections/pages and nothing jumped out at me as worth saving. For me it is all outdated. Disabling or enabling modules manually in the database has commands for uninstalling a module via SQL but everything else on the page is out of date. In cases like this, it think it better to delete the old page and, if someone wants that info, they can add it in the 'new' docs somewhere. Or maybe it already exists in a blog post.

1. Account, permission and login issues
2. Blank pages and missing content
3. Site configuration, module and installation issues

1. Webhosting issues. This page has recent comments
2. Disabling or enabling modules manually in the database