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Host Protected Areas

Note that many drives will contain a host protected area, which will not be displayed in the file explorer for an operating system. The MAX ADDRESS of a drive can be set so less than the full size of a drive is shown. The rest of the drive will be a host protected area, the OS cannot work with. But BIOS software may work with the host protected area. A host protected area may be required for some firmware because it cannot successfully boot from a large drive.


Host protected areas can also be used to hold system restore software.


The host protected area will not be altered when a drive is reformatted, so theft detection software may be loaded there.


Naturally, the host protected area is also a good place to hide data, including malware.

Sean O'Shea has more than 20 years of experience in the litigation support field with major law firms in New York and San Francisco.   He is an ACEDS Certified eDiscovery Specialist and a Relativity Certified Administrator.

The views expressed in this blog are those of the owner and do not reflect the views or opinions of the owner’s employer.

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