Hi, I've run bitlocker on my external HDD drive, but during encryption, the power of the external HDD went down. After I plugged it back, the disc appears as locked, but I can't unlock it. I tried to unlock it with my password or even with the Recovery password without success. Any help will be highly appreciated. Rony

Hi RonyBe, The only solution might be re-format your external hard drive. BartBartosz Kurowski Senior Desktop Support, Microsoft Cerified Trainer. MCP, MCT, MCTS, MCITP, MOS

Hi, Based on the current situation, please try the BitLocker Repair Tool to Recover a Drive http://technet.microsoft.com/en-us/library/ee523219(WS.10).aspx If the issue persists, you can try the following commands in an elevated commend prompt window. manage-bde C: -unlock -pw press Enter and it will prompt for your password. For more information, you can refer to: http://technet.microsoft.com/en-us/library/dd875513(WS.10).aspx#BKMK_unlock Niki Han TechNet Community Support

Hi, Based on the current situation, please try the BitLocker Repair Tool to Recover a Drive http://technet.microsoft.com/en-us/library/ee523219(WS.10).aspx If the issue persists, you can try the following commands in an elevated commend prompt window. manage-bde C: -unlock -pw press Enter and it will prompt for your password. For more information, you can refer to: http://technet.microsoft.com/en-us/library/dd875513(WS.10).aspx#BKMK_unlock Niki Han TechNet Community Support