Understandably, the operating system and important disk device drivers are also receiving updates to reflect optimization for Advanced Format drives. Sometimes Advanced Format drives are shown as 4K/512e, comparing the physical and logical sizes, where eight 512e sectors are sent for each 4K sector. This is called 512 byte emulation, or 512e. While the physical size is 4K, the disk drive processor presents the data over the cables to the computer as ordinary 512 byte sectors. Advanced Format sectors are also called 4K sectors because each physical sector now holds 4096 bytes. The default sector size has been 512 bytes since the advent of the personal computer. The hard disk drive industry is transitioning to larger physical sector sizes called Advanced Format. Discusses the origin of installation errors on Windows 7 with Advanced Format (4K sector) drives and how to troubleshoot.
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