If the following advises did not help please visit forum's Tutorials section.

How to Backup

  1. Backup your data
  2. Backup encrypted volume header via DC
  3. Backup file system header ?

How to Encrypt

System/Boot partition (single OS configuration)

  1. If you computer has UEFI/GPT you must use DC version 1.2 or newer.
  2. 100-500mb System Reserved partition
    • Encrypt this partition with same credentials as main Windows
      partition. OR
    • Delete this partition:

      1. Copy/remove "Boot" folder and bootmgr/bootsec.bak files to main
        Windows partition. Do this from foreign system (attach HDD to
        another computer or use "Live CD"), cause folder "Boot" are
        locked in active system.
      2. Encrypt only main Windows partition
      3. Set booting method:
        • Set up booting method option to "First partition with
          appropriate password"/"Specified partiton" in DC bootloader
          configuration. OR
        • Move active partition flag from System Reserved to main
          Windows partition by any low-level disk software or windows
          disk manager (from foreign system). DC-bootloader booting
          method may be any (I used Active or Boot disk MBR) in this
  3. \~1Gb Recovery partition from notebook manufacturer. Encryption is
    not required.
  4. Main Windows partition

System/Boot partition (multi OS configuration)

  1. 10 and 10
  2. 7 and 7
  3. [7 and XP]
  4. [7 and linux]
  5. [XP and XP (one encrypted and one not)]
  6. XX and XX

Tips for Designing Multiboot Configurations

Customizing a computer to perform a dual boot requires close attention
to details. The Diskcryptor bootloader is designed to flexibly
accommodate an abundance of dual boot scenarios, not all of which are
discussed here in detail. What is presented here are tips to make a dual
boot configuration work with Diskcryptor.

After the computer is started and the user enters a password,
Diskcryptor allows chainloading of partitions that are encrypted with
the password that was entered, as well as chainloading of unencrypted
partitions. Diskcryptor supports chainloading of multiple partitions
sequentially. For example, Diskcryptor may first cause a boot manager to
be started on a certain encrypted partition. Then after the user selects
an encrypted operating system located on another partition, that
operating system starts with the help of Diskcryptor. For this to work,
the boot manager partition and the operating system partition need to be
encrypted with the same password.

If the configured booting method for Diskcryptor's bootloader is "first
partition with appropriate password", it is possible to use two
different passwords so that each password would result in Diskcryptor
chainloading a different encrypted partition initially. For example,
there is one disk in the computer with two partitions. The first
partition is encrypted with password A. The second partition is
encrypted with password B. If A is entered at the prompt, Diskcryptor
chainloads the first partition; and if B is entered at the prompt,
Diskcryptor chainloads the second partition. The first and second
partitions each contain one Windows operating system from this list: XP,
7, 8, 10.

It is important to note that standard installations of Windows 7 and
later have a boot manager partition which is separate from the operating
system partition (C drive). It is possible to install Windows 7 or
later, then remove the separate boot manager partition, and finally
create a new functional copy of the boot manager inside the operating
system partition. In the dual boot example above where passwords A and B
are used, it is assumed that if Windows 7 or above is present in one of
the partitions, this partition has been prearranged to include the boot
manager for the operating system located there. The boot manager in the
first partition needs to point the computer to the first partition on
the disk, and the boot manager in the second partition needs to point
the computer to the second partition on the disk.

It is also important to note that Diskcryptor's bootloader does not
support GPT partitioned disks and UEFI native mode startup. It supports
MBR partitioned disks and BIOS mode startup. BIOS mode startup may be
emulated by a computer with UEFI if the boot mode is set to "legacy" or

For more information about bootloader setup, look here:

Experimentation with dual boot configurations may be done in virtual
machines, using software such as VirtualBox or VMware Player. This can
serve to isolate the experimental changes from the boot setup on the
host computer. If two separate installations of Windows 7 are desired,
each encrypted with a different password, here is a suggestion:
Determine how to install unencrypted Windows 7 on a computer, so that
the disk contains only one partition. Then determine how to install
unencrypted Windows 7 on a computer so that the disk has two partitions,
and the first partition is an unbootable encrypted data partition. Make
partition images of the successful Windows 7 installations. Restore both
system images to the disk as separate partitions, and do not leave the
unbootable partition on the disk. (The system configured to come after
an unbootable partition should be placed second, and the system
configured to be within the only partition on a disk should be placed at
the beginning of the disk.) Use a LiveCD to encrypt both partitions with
different passwords, and install the Diskcryptor bootloader. Activate
the bootloader option "first partition with appropriate password". Avoid
conducting tests while using a computer that is connected to a drive
containing information that must not be lost.