These names might help you identify the asset directory in a later step. Select the package you want to remove from your project and take note of the package name (A) and the publisher name (B). Open the Packages menu and select the My Assets context.

To remove imported assets from your project: See Delete a package from the Asset Store cache. Delete this package from your Asset Store cache.Use the following procedure to remove the assets from each project that uses them.To completely remove an Asset Store package and its assets from your computer, you must remove them from multiple locations: It also doesn’t remove the package from the Asset Store cache. It doesn’t remove the same assets that might exist in other projects. This procedure removes assets from the current project. For information about removing packages that you installed from a registry, see Removing an installed package from a project. Don’t use this procedure to attempt to remove packages that you installed from a registry. Use this procedure to remove assets only if you added them to the current project by importing them by following the Importing an Asset Store package procedure or by importing a custom package. Make sure you understand these important notes before you begin: Unlike installed packages, the Package Manager doesn’t track imported packages, so it can’t detect when you remove dependent assets. Warning: Make sure your project isn’t using any of the assets you remove. You might consider this action to unclutter your project directory or to free up space on your local hard drive. You can manually remove assets from a project if you know the assets aren’t in use. More info See in Glossary assets, the Unity Package Manager places them in the Assets directory in your project. Offers a wide variety of assets, from textures, models and animations to whole project examples, tutorials and Editor extensions. When you import Asset Store A growing library of free and commercial assets created by Unity and members of the community.

Unity how to extract a asset pack