Laptop TPM initialization failing
4.5
TPM is detected but fails to "Prepare" or "Clear" correctly.
Symptoms
- Error code in tpm.msc
- BitLocker error
- Setup hang
Possible Causes
- Ownership issue
- Outdated firmware
- Registry lock
Step-by-Step Fix
1
Clear TPM
Use tpm.msc to "Clear TPM" (Warning: This resets security keys).
2
Update TPM Firmware
Check the laptop manufacturer site for TPM-specific updates.
3
Check BIOS Security
Ensure "TPM State" is set to "Enabled" and "Active".
When to See a Technician
Clearing the TPM will remove all Windows Hello data and BitLocker keys; back up your recovery key first!
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