Windows 10 Pr0 64-bit: fails backup to system image & fails file back up.

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UBJECT: Backup Failure



OS: Window 10 Pro 64-bit (latest update)

Computers afflicted:


  1. Dell Mobile Precision 7510 workstation.


  2. Dell Precision 5820 Tower workstation



Problem: Windows 10 Pr0 64-bit: fails backup to system image & fails file back up.

Both backup and create system image fail with Error code: 0x80310000

"This drive is locked by BitLocker Drive Encryption. You must unlock this drive from the Control Panel."



Notes.

1. The drives / partitions being used for backup & system image are NOT encrypted (BitLocke not enabled). The Boot drives have BitLocker enabled.



2. The error statement does not indicate which drive-- the Encrypted System SSD or the unencrypted backup partition on an unencrypted backup HDDs. It is not obvious whether the "error" message erroneously identifies the backup HDDs / partition as being encrypted (BitLocker enabled).



Facts bearing on the problem:



1. Action that is being attempted and failed: Create a system image and create a backup (file history) of selected files from 512 GB SSD (Boot drive) to an unencrypted HDD.



2. Previously I had no problem both backing up, and creating a system image from the internal OEM HDD to:

(Dell 5820T) to this same unencrypted HDD partition on the unencrypted 1TB internal HDD.

(Dell M7510) to an unencrypted 500 GB external (USB connection) HDD



3. I migrated Windows 10 Pro from the internal OEM 1TB HDD to an internal 512 GB SSD.


  • The system SSDs are encrypted (BitLocker is enabled)


  • The backup HDDs are not encrypted (BitLocker not enabled).


  • There is adequate space on the unencrypted backup partitions.


  • The backup HDDs / partitions were erased and re- formatted (GPT NTSF). Read & write permissions granted.


  • The Boot (system) SSDs are Western Digital Black NVMe PCIe.



5. The Source ("C") SSDs, and destination (backup) HDDs were scanned (using Windows Disk Check) for problems. RESULTS: no problems noted.



6. Ran the System File Checker (SFC) scan (scannow). RESULTS: "Windows Resource Protection did not find any integrity violations."



7. Ran the DISM check. RESULTS: "The restore operation completd successfully. The operation completed successfully."





JMP INTERIM SOLUTION: Backed up boot SSD ("C") using Acronis True Image (Western Digital Edition)

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