How can I determine the sector size in windows?

Question

How can I determine the Physical Sector Size (e.g. if i have an Advanced Format drive with 4,096 byte sectors rather than the legacy 512 byte sectors) in Wi

Answer 1

If you really want to have it programmatically, you need to send IOCTL_STORAGE_QUERY_PROPERTY providing STORAGE_PROPERTY_QUERY with PropertyId set to StorageAccessAlignmentProperty. This gives both physical and logical sector sizes.

Note: this only works on Windows Vista and higher.