The decoy system must be encrypted with the same encryption algorithm as the hidden system. Otherwise, the hidden system will be inaccessible! You will have to select the same algorithms for the decoy system. Please remember the algorithms that you select in this step. This ensures that no data currently stored on the outer volume will be overwritten by data written to the area of the hidden volume. The maximum possible size of the hidden volume has been determined and confirmed to be greater than the size of the system partition which is required, because the entire content of the system partition will need to be copied to the hidden volume. This area will accommodate the hidden volume, so it limits its maximum possible size. The cluster bitmap of the outer volume has been scanned in order to determine the size of uninterrupted area of free space whose end is aligned with the end of the outer volume. All read and write operations are being transparently redirected from the original system partition to the hidden volume.Īny such data is encrypted and decrypted on the fly as usual with an encryption key different from the one that will be used for the decoy operating system. However, in reality, it is installed within the partition behind it in the hidden volume. As you may have noticed, the hidden operating system appears to be installed on the same partition as the original operating system. If all the instructions have been followed and if the precautions and requirements listed in the section "Security Requirements and Precautions Pertaining to Hidden Volumes" in the VeraCrypt User's Guide are followed, it should be impossible to prove that the hidden volume exists, even when the outer volume is mounted. However, no drive letter is currently available. To be able to access the decrypted data, a drive letter needs to be assigned to the decrypted volume. Until a drive letter is assigned to the decrypted volume, you will not be able to access data stored on the volume. This is required due to the fact that both systems will share a common boot partition. If the partition is empty, you should choose the other option the volume will be created much faster. If you want to encrypt existing data on a partition, choose the other option. Outer volumes can also be created within devices that do not contain any partitions including hard disks and solid-state drives. A device that contains partitions can be entirely encrypted in place using a single key only if it is the drive where Windows is installed and from which it boots.
Partitions can also be encrypted in place. You will be able to encrypt existing files later on by moving them to the VeraCrypt container you are about to create now. If you select an existing file, VeraCrypt will NOT encrypt it it will be deleted and replaced with the newly created container.
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