Laptop secondary drive encryption failing with error

4.5

An error code appears specifically when encrypting a non-OS drive.

Symptoms
  • Error code
  • Process cancels
  • Drive becomes RAW
Possible Causes
  • Bad sectors
  • USB power drop
  • Controller issue

Step-by-Step Fix

1

Run chkdsk /r

Scan the secondary drive for physical errors.

2

Use Powered USB Hub

If external, ensure it has enough power.

3

Check Event Viewer

Look for "Disk" or "BitLocker" errors.

When to See a Technician

External drives often fail encryption because of unstable USB power; use a rear port or powered hub.

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