Format External Hard Drive __top__

| File System | Windows | Mac (read/write) | Linux | Max File Size | Best For | |-------------|---------|------------------|-------|---------------|-----------| | | ✅ | ✅ (native) | ✅ | 16 EB | USB flash / external SSD – works everywhere | | NTFS | ✅ | ⚠️ Read-only natively (need driver to write) | ✅ | 256 TB | Windows-only drives (e.g., PC backups) | | FAT32 | ✅ | ✅ | ✅ | 4 GB | Old devices (game consoles, car stereos) – avoid for large files | | APFS | ❌ | ✅ (macOS 10.13+) | ❌ | 8 EB | Mac-only Time Machine or internal-style use | | ext4 | ❌ | ❌ | ✅ | 16 TB | Linux-only systems |

To format an external hard drive on macOS: format external hard drive

Command line alternative (replace /dev/sdb1 with your drive): | File System | Windows | Mac (read/write)

| I want to… | Do this | |------------------------------------------------|-----------------------------------------| | Use drive on PC + Mac + PS5 + TV | Format as | | Only use on Windows (backups, games) | Format as NTFS | | Only use on modern Macs (SSD external) | Format as APFS | | Use on old devices (car radio, camera, Wii) | Format as FAT32 (but ≤4GB files) | | Permanently erase data before selling drive | Full format (or use disk-wiping software) | format external hard drive

Last tip: After formatting, always keep one backup of your data elsewhere. No single drive lasts forever.