Noted That:

• To install correctly this image-sizes.zip.
• Fisrt Download the image-sizes.zip to your computer
• Extract/Open image-sizes.zip to Your Computer.
• Then, Find readme.txt file inside image-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 "image-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 "image-sizes.zip" Downloaded plugin from your computer, Where you downloaded image-sizes.zip According to Step – 1 Above then, click on "Install Now"

6. Now, Click on "Active Plugin"

7. Then, See left sidemenu. "Stop Generating Unnecessary Thumbnails" folder is added on left sidemenu. Now, Click on "Stop Generating Unnecessary Thumbnails" folder.

   Noted that: If you do not see "Stop Generating Unnecessary Thumbnails" folder on left sidemenu then, see at left sidemenu "Settings" or "Tools".

8. Now you configure yourself oR Watch video tutorial below about Stop Generating Unnecessary Thumbnails Configurtions and Settings or How to work "Stop Generating Unnecessary Thumbnails" 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 "Stop Generating Unnecessary Thumbnails" Activated Plugin from Plugin List.
4. Then, Click on "Settings" from Plugin that is Stop Generating Unnecessary Thumbnails
5. Now, Edit/Add/Config the setting and Click on "Save Changes" button,

1. Upload image-sizes to the /wp-content/plugins/ directory
2. Activate the plugin through the Plugins menu in WordPress
3. Go to Image Sizes menu from the left and choose which of the sizes you want to prevent from generating.