Pattern to record: Problems begin after unplugging, sleep or a loose cable event.

Identify the storage layer

BitLocker is an encryption layer, not a file system. The NTFS-specific checks here apply only after the authorised volume is unlocked and its underlying format is confirmed; retain the recovery key before firmware or hardware changes. One possible explanation is that cached changes were not committed before the device disconnected.

Protect data before repair

Never clear TPM or format the volume while recovery information is uncertain. Reconnecting repeatedly through the same loose cable risks more corruption.

Evidence to check on the protected copy

1. Confirm ownership and recovery credentials before testing metadata or hardware changes.
2. Stabilise the connection and compare metadata on a read-only image.

Recovery and verification

If the checks support this cause, repair the file system after important data is copied elsewhere. Verification should cover authorised unlock, restart, file access, backup and recovery-key documentation.

For an assessment of your encrypted Windows computer, contact AEPC in Burswood or call 027 908 8880. Provide the model and the conditions that reproduce this problem. Workshop visits are by appointment.