Noted That:

• To install correctly this disable-media-sizes.zip.
• Fisrt Download the disable-media-sizes.zip to your computer
• Extract/Open disable-media-sizes.zip to Your Computer.
• Then, Find readme.txt file inside disable-media-sizes.zip and Open readme.txt.
• Now, Read the Requirements of this plugin. Which Wordpress Version and PHP Version are required to run this Plugin in Your Wordpress Site.
• Then, Follow the the Tips Below.

Start the Tips:

1. First Download "disable-media-sizes.zip" Plugin to your Local Computer. (Click Download)

2. Then, Login to your "yourdomain.com/wp-admin" Dashboard.

3. Then, Click on "Plugins" + "Add New" from left sidemenu of Dashboard.

4. Now, Click on "Upload Plugin" button.

5. Now, Browse "disable-media-sizes.zip" Downloaded plugin from your computer, Where you downloaded disable-media-sizes.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Disable Media Sizes" folder is added on left sidemenu. Now, Click on "Disable Media Sizes" folder.

   Noted that: If you do not see "Disable Media Sizes" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Disable Media Sizes Configurtions and Settings or How to work "Disable Media Sizes" in your WordPress site.

After Activated Plugin According to Step-6 then,

1. Go to "Plugins" + "Installed Plugin" from Wordpress Admin Panel Leftside Menu.
2. or Direct go to: https://yourdomain/wp-admin/plugins.php
3. Then, Find "Disable Media Sizes" Activated Plugin from Plugin List.
4. Then, Click on "Settings" from Plugin that is Disable Media Sizes
5. Now, Edit/Add/Config the setting and Click on "Save Changes" button,

Installing the plugin

Activate like any other plugin and done. Visit the plugin settings page to choose your options.

More info on installing WP plugins

Still getting extra images?

If you are noticing extra images that cannot be disabled by the plugin, most likely they are being generated by some other plugin or maybe your theme. In that case, you would need to do some investigating to determine which plugin or theme is causing it to happen. This plugin disables only the image/sizes that WordPress creates by default. So any extra image sizes added by other plugins and themes will need to be disabled in some other way. If in doubt, ask your plugin or theme provider. They will know the best steps.

Uninstalling

To uninstall/remove the plugin, visit the Plugins screen, deactivate and delete the plugin. All plugin options will be removed from the database when the plugin is removed via the Plugins screen. Also, the plugin does not remove any existing images at any time. So it is safe to delete the plugin, it never touches any images.