I was trying to set up bitlocker on my Dell XPS 15 running Win10 Enterprise. After running the Bitlocker wizard on C: I got this error: “The TPM is defending against dictionary attacks and is in a time-out period”. So I opened the TPM MMC and I saw that all the options in the action menu are blanked out except for “Prepare the TPM”. Unfortunately when I click on it I get another error: “The TPM on this computer is currently locked out”.
I also tried clearing it in the BIOS but again, the option was blanked out.
What can I do to resolve it?
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