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Blancco erasure software currently has the capability to remove DCO and HPA areas but the possibility to do this requires that the BIOS on a computer does not freeze lock the necessary commands. More information about freeze locks can be found in another FAQ article – here. More information about HPA/DCO removal reporting can be found in another FAQ article – here.
Further Reading
- Gupta M., Hoeschele M., Rogers M., Hidden Disk Areas: HPA and DCO, International Journal of Digital Evidence, Purdue University, 2006. http://www.utica.edu/academic/institutes/ecii/publications/articles/EFE36584-D13F-2962-67BEB146864A2671.pdf
- Wikipedia’s entry on HPA: http://en.wikipedia.org/wiki/Host_protected_area
- Wikipedia’s entry on DCO: http://en.wikipedia.org/wiki/Device_Configuration_Overlay