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NTFS General Information
> NTFS Basics > exFAT Overview > exFAT Extended Boot Sector
Extended Boot Sector
Offset |
Size |
Description |
Comments |
0 (0x00) |
2^BytesPerSectorShift - 4 |
ExtendedBootCode |
|
2^BytesPerSectorShift - 4 |
4 |
ExtendedBootSignature |
0xAA550000 |
Whole sector is used for boot code except last 4 bytes used for signature in each sector.
If Extended Boot Sector is not used, it should be filled with 0x00.
Extended signature must be preserved.
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