How to solve Win7 hard disk can not pop up BitLocker decryption window

In the era of rapid development of the Internet, network security has become a very serious topic. With a little negligence, some things on the computer that shouldn't be watched are spread, maybe you are the next "Mr. Chen" The BitLocker in Windows 7 is powerful enough to protect the hard disk, lock a hard disk, and refuse privacy.

But this is the problem, the problem will come. After we enable the BitLocker function on the hard disk, the system will reinstall, or remove the hard disk containing the BitLocker drive encryption or move the hard disk to other computers. Unable to unlock, right click on the locked hard drive, choose to unlock the drive, no response. How to solve this problem?
Workaround
1. Click the Start button in the lower left corner of the desktop, click All Programs - Accessories from the pop-up menu, find the command prompt, right click, as administrator run. Otherwise, the input command will not be executed.

2. From the Command Prompt dialog box, enter the following command: manage-bde –unlock E: -RecoveryPassword ****** , the asterisk represents the BitLocker recovery key instead of our own settings Password.

3. When we enabled the BitLocker function for the hard disk, we automatically generated a key and opened it. The yellow area below is what I saved at the time. Copy it and type it into the command.

4. After the command is input, press Enter. The English prompt for successful unlocking will appear below, and then the dialog box shown below will pop up to prove that it has been unlocked.

5. It is not over yet. In order to prevent the decryption box from popping up in the future, we need to set BitLocker again, as shown below, and then re-enable the function.