public static void reevaluateDefaultFolders() {
        try (ContextLogger ignored = new ContextLogger(true, "PersistableFolder.reevaluateDefaultFolders")) {
            for (PersistableFolder folder : PersistableFolder.values()) {
                folder.reevaluateDefaultFolder();
            }
        }
    }
reevaluate folder defaults. Careful, this might run several seconds!
main/src/main/java/cgeo/geocaching/storage/PersistableFolder.java