For older PCs (eg pre 8th Gen Intel), the MB may have a TPM connector. My Z87 MB from 2013 has one.
It may only need a BIOS setting change eg my MB(MSI Z87 GD65 Gaming).
Quote:
Trusted Computing
Sets TPM (Trusted Platform Module) function.
TPM SUPPORT [Disabled]
Enables or disables the TPM function to build the endorsement key for accessing the system
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Don't know if that would work on my PC.
Link
Quote:
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To resolve this issue, you just need to jump into the UEFI/BIOS—generally by hitting [Del] as your machine boots and switching it on. It shouldn't take too much tracking down, but different manufacturers do hide it in different places. On my Gigabyte X570 Aorus Master motherboard, it could be found by selecting Settings -> Miscellaneous -> Trusted Computing 2.0 and switching the Security Device Support to Enable. We also tested on an MSI motherboard with similar steps: Advanced Settings > Security > Trusted Computing.
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PS:- Checked my BIOS setting and the MB needs a TPM module installed for the setting to be available.