When encrypted my USB drive with BitLocker, a sudden power outage happens. I immediately restart my computer. Upon reopening, the BitLocker encrypted drive was already locked, when I attempted to unlock it with password, then I/O device error occurred. I tried the recovery key to unlock it, but to no avail. Please help me resolve this.
During the BitLocker encryption process, if there is no BitLocker process pause and it’s abruptly interrupted, it may lead to disk damage and irreversible data loss. The BitLocker I/O device error when unlocking a BitLocker encrypted disk may due to various reasons. Here are some possible solutions:
Issues with the USB interface or poor connectivity can also run into the I/O device error. Trying replacing the data cable or changing the port connection to fix it. Also, attempted to connect the BitLocker hard disk to another computer to check whether it can be unlocked.
If BitLocker drives are damaged or if the hard drive has bad sectors causing data verification errors, follow these steps to resolve the issue:
Step 1 Type "cmd" in the search box and press <Ctrl + Shift + Enter> to open Command Prompt as administrator.
Step 2 Type the following command and press "Enter" to check and repair file system errors. Replace "X" with the drive letter of the affected device.
chkdsk X: /f /r
- /f specifies a command to fix errors
- /r locates bad sectors and recovers readable information
Step 3 Wait for the process to complete, it may take a long time. Restart the computer to see if the issue is resolved.
Unlocking a hard drive in Safe Mode may bypass interference from certain drivers or services. Here’s how:
Step 1 Click on "Start" -> "Power" option, hold the Shift key, and then click on "restart" to access BitLocker WinRE.
Step 2 Navigate to Troubleshoot -> Advanced options -> Command Prompt.
Step 3 Check the current encryption status of the drive, replace "X" with your own drive letter:
manage-bde -status X:
Step 4 Unlock the BitLocker-encrypted drive:
manage-bde -unlock X: -recoverypassword YOUR_48_DIGIT_RECOVERY_PASSWORD
If you’ve forgotten your recovery key, find the BitLocker recovery key ID to retrieve it. Once you have the recovery key ID, locate the file named with the recovery key ID or use the following command to unlock with a password:
manage-bde -unlock X: -password
Step 5 Verify if the drive is unlocked:
manage-bde -status X:
Step 6Turn off BitLocker for drive E:
manage-bde -off X:
If the above methods for BitLocker on Usb Drive do not work, consider using the BitLocker Repair tool to recover partially encrypted data to another hard drive.
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