This tool can allow you to remove all non vanilla assets from the skyrim install directory. Currently tested with skyrim legendary.

Real easy to use either paste the location of your skyrim directory into the textbox or browse for it then hit clean.

A little more detail.

• It has an internal master list of all the files included in skyrim legendry.
• It also has a KeepList.txt that you can add file names to.
• It looks at the content of the directory and compares each file to that list.
• If it is not in that list it removes it.
• When it has finished it finds folders with no content then removes those too =)
  

To generate a quick filelist text of everything in your skyrim directory
create a batch file with

forfiles /s /m *.* /c "cmd /c echo @file" >> FileList.txt


Move it to your skyrim directory and run. It will generate a filelist.txt with a complete list of all of your skyrim files. kinda good for keeping a
keeplist.txt that can revert your skyrim directory to a fixed state.

The filelist.text will have " either side of the filename Use notepad++ and find/replace with nothing (No space just leave it blank) then replace all

Source is included in download and also can be found here https://github.com/Nixsy4/Skyrim-folder-cleaner