Laptop unable to use BitLocker on drive with calibration errors

4.5

The drive fails to calibrate its internal sensors, leading to I/O failures.

Symptoms
  • Drive not ready
  • Error on boot
  • Whirring sound
Possible Causes
  • Mechanical failure
  • Firmware bug

Step-by-Step Fix

1

Check SMART Attribute 11

Monitor "Calibration Retry Count".

2

Update Drive Firmware

Check for manufacturer updates.

3

Replace Drive

Calibration failure is a sign of a dying motor or head.

When to See a Technician

If the drive can't calibrate, it can't reliably read or write data, making encryption impossible.

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