Hotspot Question
You provide support for a small company. The company purchases a Windows 8.1 laptop for an
employee who travels often. The company wants to use BitLocker to secure the hard drive for the
laptop in case it is lost or stolen. While attempting to enable BitLocker, you receive the error
message shown in the following image.
Answer: 
Explanation:
How to Configure Computer to Enable BitLocker without Compatible TPM:
– Administrators must follow the steps below to configure their Windows 8 computers to allow
enabling Bit Locker Drive Encryption without compatible TPM.
– Log on to Windows 8 computer with the account that has administrative privileges.
– Assuming that the computer has been configured to display classic start menu, click Start and at
the bottom of the menu in search box type GPEDIT.MSC command and press enter key.
– On the opened Local Group Policy Editor snap-in from the left pane expand Computer
Configuration > Administrative Templates > Windows Components > Bit Locker Drive Encryption
and from the expanded list click to select Operating System Devices.
– From the right pane double-click “Require additional authentication” at startup.
– On the opened box click to select Enabled radio button and ensure that under Options section
Allow Bit Locker without a compatible TPM checkbox is checked.
– Once done, click Ok button to allow the changes to take effect and close Local Group Policy Editor
snap-in.
https://answers.microsoft.com/en-us/windows/forum/windows_8-security/allow-bitlocker-withoutcompatible-tmp-module/4c0623b5-70f4-4953-bde4-34ef18045e4f?auth=1