Question: what file system supports the use of efs
[{'answer': 'NTFS', 'provenance': [{'wikipedia_id': '628391', 'title': 'Encrypting File System', 'start_paragraph_id': 1, 'start_character': 96, 'end_paragraph_id': 1, 'end_character': 100, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '628391', 'title': 'Encrypting File System', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 283, 'bleu_score': 0.9529077664391161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8350260077810674373}, 'section': 'Section::::Abstract.'}]}]