Lenovo ThinkCentre A62 Deployment Manual page 22

2. Click Computer Configuration → Windows Components → BitLocker Drive
3. Enable the Require additional authentication at startup option
4. Select the option Allow BitLocker without a compatible TPM.
Best practice of BitLocker encryption on a system with the
Rescue and Recovery program
To have the Rescue and Recovery program work correctly with BitLocker in
Windows 7, the best practice is:
1. Uninstall the Rescue and Recovery program if it has been installed.
2. Restart the computer and use the BitLocker Drive Preparation Tool to prepare
3. Install the Rescue and Recovery program and restart the computer.
4. Start BitLocker from Control Panel and choose the partition to encrypt.
5. Click Turn on BitLocker, and follow the instruction on the screen to encrypt
6. Save the recovery key to a USB storage device.
7. Wait until the encryption process completes. After that, you can use the Rescue
For more information about BitLocker, go to the Microsoft Web site at:
http://support.microsoft.com/kb/933246/
Notes:
1. When setting up BitLocker in Windows 7, the BitLocker partition should be
2. When restoring a system that is using Windows 7 and BitLocker, a message
3. For OEM or non-Lenovo standard preload systems, you need to suspend the
4. You might need to clear the TPM and encrypt the partitions again after
14
Rescue and Recovery 4.3 Deployment Guide
Encryption → Operating System Drives.
the system for BitLocker Drive Encryption.
Note: It is recommended to encrypt the Windows operating system partition
(usually drive C) only.
the chosen partition. After that, a recovery key is automatically created.
Note: Keep the USB storage device in a secured place. The recovery key is
needed when booting to Windows 7 or the Rescue and Recovery workspace.
The BitLocker encryption will be lost if the hard disk drive is cleared by the
Diskpart commands or other hard disk tools.
and Recovery program to perform backup and restore operations.
after the Windows operating system partition for best results. If it is placed
before the Windows operating system partition, the partition number will need
to be updated in the Rescue and Recovery ADM settings.
will display, indicating that there was an error at shutdown. The message can
be ignored and everything should operate normally.
encryption of the Windows operating system partition when performing any
backup or restore operations using the Rescue and Recovery program,
otherwise the Rescue and Recovery program will not enter PDA.
restoring the system from a backup with BitLocker encryption.