Whole-disk encryption bypasses it all by ignoring files completely and encrypting everything at the next level down, when the data is written to disk. There are many approaches to encrypting files. (More correctly, it encrypts everything in a partition.) Whole-disk encryption (of the type performed by Bitlocker and other software) encrypts everything on your hard disk. ![]() The alternative is a sector-by-sector backup of the drive in its encrypted form, which would require both a complete restore and a separate encryption key in order to recover its contents. The most common and recommended approach is to back up the files on the disk in their unencrypted form, and then secure the backup some other way. ![]() There are two ways to back up an encrypted hard disk.
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