Laptop unable to use BitLocker on drive with thermal asperity rate limit
4.5
The drive head is hitting microscopic bumps on the platter caused by heat.
Symptoms
- Clicking
- Sudden error
- System hang
Possible Causes
- Overheating
- Surface damage
Step-by-Step Fix
1
Check SMART Attribute 202
Monitor "Thermal Asperity Rate".
2
Cool Down Laptop
Encryption makes drives run hot.
3
Replace Drive
Platter damage is permanent.
When to See a Technician
Thermal asperity is a sign of a "dirty" or damaged platter surface.
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