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I have a Dell Inspiron 15 (7577), with BIOS version 1.8.0.

I wanted to issue Clear TPM command from Windows 10 (build 1903), but this appeared:

Clear TPM - device does not support

Clear TPM - device does not support

In the UEFI, I haven't found any option named TPM, nor mentioning it in description.

So, how do I clear TPM on my current setup?

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1 Answer 1

Reset to default
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It appears to be very well hidden, on purpose..? Who knows...

Navigate in your UEFI BIOS to:

Security -> PTT Security -> check Clear.

Then a confirmation window appears:

PTT Clear

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