Q: We have installed Windows 7 Enterprise but get an error enabling bitlocker. Error received: The Trusted Platform Module (TPM) on this computer does not work with the current BIOS. How do we correct this issue?

 

A: This error happens when you have TPM 2.0 on your system. First we need to check if you installed your OS as UEFI (GPT) or Legacy (MBR).

1. Open Command Prompt
2. Type Diskpart and press enter
3. Type List Disk and press enter
4. On the right under GPT if you have a * it means you installed the OS as UEFI using a GPT partition.
   a. If you do not then you’d need to re-install your OS making sure Secure Boot is enabled in BIOS and the OS Partition is GPT if you’re wanting to use TPM 2.0

If your partition is GPT then it means you need to install the following hotfix for your Windows 7 Enterprise to work with TPM 2.0 properly:
https://support.microsoft.com/en-us/kb/2920188

Once installed attempt bitlocker again.