Can I temporarily disable learners’ access to my modules/folders?

There are two ways you can do so:

First, you may unpublish the module or modules in your folder. All learners/learner groups assigned to the module/folder will no longer be able to access them until you publish them again. 

Second, you may also unassign all or specific learners/learner groups from the module/folder. Their completion progress will be retained when you reassign them to the module/folder again.