What's in the \ "data \" folder (The Elder Scrolls 5: Skyrim)

The data folder contains most of the game files (90% percent): textures, sounds, etc. and it also stores mod files and add-ons.

Dimonchester
There are almost all the files that make up the world in the game, textures, actions, movements, sounds, and mods, respectively, because they affect the structure of the surrounding world.

Thanks. I just need to get rid of unnecessary mods.

Something is wrong, my game does not turn on, and when all the mods are in the folder, it works.

Dimonchester
through Wrye Bash cut out unnecessary mods and that's it, it's not necessary to delete it.

No, I need to remove all files associated with mods directly from the "data" folder, and not just disable them.

Dimonchester
Download Nexus Mod manager for the future. You need to be crash-proof when installing mods. NMM copes with the task in an elementary way - installing mods through it allows the manager to save in memory which mods such and such files are responsible for. Thus, deleting crash-forming mods deletes ONLY the files of the selected mod.
If your game has stopped running tightly, and there is no manager, your best option is reinstalling the game. It is unlikely that someone will throw you a screen of a standard Skyrim without mods.
Moreover, there is a great chance that even if you find all the files of the desired mod, it may happen that the game / save will not start due to the lack of the required file, which your mod successfully replaced, and you then deleted it.

You can just drop a photo with the contents of the "data" folder (no mods)

For some reason I don't have half of the files in the data folder. What to do?