Some Dell systems do not ship with a TPM(Trusted Platform Module) module, and instead, use PTT (Platform Trust Technology). PTT is a lower-cost solution that supports the same functions of the TPM. From an OS perspective, there is very little difference between how TPM and PTT interact with bit locker. If a customer is complaining about being prompted for a BitLocker key (usually after a motherboard replacement) and there is no option for TPM in the BIOS, they may need to enable PTT.
- Prompted for BitLocker recover key on preboot
- No option for TPM in BIOS Setting, which is under security, only PTT
- Check the customer Service Tag, lookup to see if the system is shipped with a TPM.
- If you have checked the TPM model is in customer's purchase order, please refer to 000132757 to provide solutions for our customers.
- If there is no TPM listed in the Service Tag Lookup, please follow the steps below:
- Access to the Bios Setting
- Under Security, verify the Status on PTT Security, ensure the PTT Security is PTT ON and Enabled.
- Reboot and login to the operation system, try to set up BitLocker within the OS.