---
id: moving-folders.does-the-drive-format-affect-what-is-kept
url: https://storagestudio.us/faq/moving-folders/does-the-drive-format-affect-what-is-kept
category: "Moving folders"
subcategory: "Safety and verification"
question: "Does the external drive's format affect what's kept when I move folders?"
alt_questions:
  - "APFS vs exFAT for moved folders"
  - "Will Finder tags survive on an exFAT drive?"
  - "Best drive format for Storage Studio moves"
  - "Mac OS Extended or APFS for relocation"
short_answer: "Yes. A Mac-formatted drive (APFS or Mac OS Extended) keeps permissions, Finder tags and other Mac details; exFAT doesn't store Mac permissions, and an NTFS drive is read-only on a Mac so moves fail. APFS suits a Mac-only fast drive."
tags: ["drive format", "apfs", "exfat"]
related: ["https://storagestudio.us/faq/moving-folders/does-moving-a-folder-keep-file-dates-and-tags", "https://storagestudio.us/faq/troubleshooting/wasnt-allowed-to-read-or-write-some-files"]
applies_to: "all"
last_reviewed: 2026-10-01
---

# Does the external drive's format affect what's kept when I move folders?

Yes. A Mac-formatted drive (APFS, or Mac OS Extended) can hold everything Mac files carry — permissions, Finder tags and other extended details — so moves keep them. Cross-platform formats like exFAT don't store Mac permissions and handle some details awkwardly, and a Windows (NTFS) drive is read-only on a Mac, so moves to it fail.

If you only use the drive with Macs, APFS is the natural choice for a fast drive. Reformatting erases a drive, so copy anything you need off it first.

See [external drives](https://storagestudio.us/faq/external-drives/).