Save and Restore Sectors on Physical Disk

BestCrypt Volume Encryption allows the user to save contents of sectors from physical disk to file. As well, it is also possible to overwrite contents of some sector by data from file. The functionality may be useful, for example, if you decide to investigate how modification of some encrypted data concerns security and reliability aspects of Volume Encryption functionality of the software. For example, what happens if you modify one byte in sector that belongs to encrypted volume.

WARNING! Overwriting disk sectors is potentially dangerous operation, because it is possible to overwrite filesystem structures or system files! Run the operation only if you are absolutely sure that sector you modify does not belong to system area on disk or to some system file.

To save sectors from some physical disk, click Save sectors in the View Physical Sectors on Disk dialog window. The following window will appear:

Save sector from disk

Enter Start sector where from the data should be saved to file and Number of sectors that have to be saved in corresponding edit boxes. Browse the file or type new file name in the Save sectors to file edit box. Click Start saving to save the sectors or Exit to quit the dialog without saving sectors.

To overwrite (restore) sectors on some physical disk, click Restore sectors in the View Physical Sectors on Disk dialog window. In the appeared dialog you should enter name of the file where from data will be written to physical sector(s). Enter also number of Start sector and Number of sectors on physical disk where the data should be overwritten.
The following picture illustrates Restore sectors dialog.

Overwrite sector on disk

Restore sectors dialog shows contents of the file you have selected in sector-by-sector form, to demonstrate what data will appear on physical disk after completing the process. Please verify once again that it is exactly the data you want to appear in the disk sectors!


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