Remove all plugins, Vanilla Grasshopper How To?

I want to remove all plugins, userobjects, etc… from my Grasshopper installation and return Grasshopper to a vanilla state.

Can anyone help me or point me in the right direction please?

in %appdata%\grasshopper, remove everything from the folders Libraries and UserObjects. To be safe, just move the contents of these folders first to another directory before deleting.
You might need to place the kangaroo related stuff back