How to make folder tree static

I just want the drives and favourites in the folder tree showing without them opening

There's a lock button at the top of the folder tree (next to the close button) which makes it ignore what the current folder is. Turn that on, then use Settings > Set as Default Lister to save that state as your new default.

Great! Thanks Leo

The tree has started opening again

When you do which actions?

Is the lock still on?

I fixed it now thanks