Lenovo ThinkCentre A62 Deployment Manual page 17

2. When restoring a system that is using Windows 7 and BitLocker, a message will display, indicating that
there was an error at shutdown. The message can be ignored and everything should operate normally.
3. For OEM or non-Lenovo standard preload systems, you need to suspend the 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.
4. You might need to clear the TPM and encrypt the partitions again after restoring the system from
a backup with BitLocker encryption.
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Chapter 2 Installation