October 26, 2023 Subject: Standard Operating Procedures for Reformatting External Storage Devices

| Your Goal | Action | |-----------|--------| | Use drive on both Windows & Mac | Reformat to | | Use drive only on Windows | Reformat to NTFS | | Use drive only on Mac | Reformat to APFS or Mac OS Extended | | Drive has errors | Do a full format (uncheck Quick Format on Windows) | | Selling or giving away drive | Reformat + use secure erase (e.g., diskpart clean all on Windows) |