A Windows file or folder name can include a question mark because it is an ordinary character with no special meaning.

Windows does not permit a question mark in a file or folder name. The prohibited characters listed in the material are `\ / : * ? " < > |`; these characters have special meaning in Windows and could cause path or naming problems. The guidance also recommends avoiding these characters when naming files on a Mac if the files may later be moved to Windows. **Key takeaway:** Avoid Windows-prohibited characters when naming files, especially for cross-platform use.\n\n**Glossary:**\n- **File path**: The location of a file expressed through drives and folders.\n- **Prohibited character**: A character that Windows will not allow in a file or folder name.