Minecraft texture folder is missing. How do I fix this error?

I recently restored my laptop and reinstalled Minecraft, but I don't load the folder where the original textures can be found. I urgently need help because I like to edit the textures for texture packs. (I do not want to download a texture pack for this but use the original textures that are actually in the folder)

In the assets folder:

https://github.com/...aft-assets

Before I restored my laptop, I was able to reach the original textures. Not any longer longer. Why? But thanks for the link

Can be found in the JAR file.