Now you can use BitLocker to encrypt your system drive without having a TPM chip in your computer. It's unclear from the OP's description whether they have a TPM or they just have an older, 1.2 spec TPM. Also, note that BitLocker without a TPM should not really be considered for production use. When the Run box opens, type gpupdate /force and hit Enter. The BitLocker product team is aware of this limitation and is investigating the scenario but for now, it is what it is.

Now we will need to force the policy to take effect on your PC, to do this press the Windows + R key combination.

Click OK and close out of Local Group Policy Editor.

Check the box marked “ Allow BitLocker without a compatible TPM“.

In the radio buttons at the top, select Enabled.

In Local Group Policy, go as the path on the left. In the box, enter gpedit.msc and then click OK. At first, you need to make sure you have administrative privileges. Double-click on “ Require additional authentication at startup“. Even without Trusted Platform Module Windows 7 or Windows 10, you can also easily enable BitLocker Drive Encryption in Group Policy.

Go to Local Computer Policy > Computer Configuration > Administrative Templates > Windows Components > BitLocker Drive Encryption > Operating Systems.

Press the Windows key + R to bring up the Run box, type gpedit.msc and hit Enter to open the Group Policy Editor.

Luckily there is a group policy that allows you to configure BitLocker to work without a TPM chip. However, not all computers include TPM and you can’t add a TPM chip to a computer.

Your administrator must set the “Allow BitLocker without a compatible TPM” option in the “Require additional authentication at startup” policy for OS volumes.” “This device can’t use a Trusted Platform Module.

Please contact your system administrator to enable BitLocker.” External TipsAlternative Tool to Turn on BitLocker in Windows 10. Solution 4Change the Dynamic Disk to Basic Disk. Solution 2Enable BitLocker on Your Computer without TPM. “A compatible Trusted Platform Module (TPM) Security Device must be present on this computer, but a TPM was not found. Solution 1Upgrade Your Windows 10 Edition. If you try to enable BitLocker on an old computer without TPM chip, you will receive one of the following error messages: BitLocker is a useful hard drive encryption feature in Ultimate and Enterprise versions of Windows 10/8/7/Vista, which allows you to encrypt an entire fixed drive.

Bitlocker without tpm windows 10