Heiner,
I suspect your problem is that when you get to the C:\Users\username directory, you cannot see the AppData directory?
If that is the problem you are having, it is because the AppData directory is a hidden system directory that is not normally shown by File Explorer.
There are two solutions, you could change the view properties to display hidden and system files.
Or you could simply type C:\Users\username\AppData into the address bar of File Manager.
You would then be able to see the remaining directory choices of 'Roaming' -> 'Blender Foundation' -> 'Blender'.
I hope that helps.
Regards,
Ian.
Last edited: Jun 27, 2009