BitLocker is a free feature from Microsoft on the Windows Vista, Windows 7 Ultimate and Windows 7 Enterprise to protect the files on our hard drives. With the help of BitLocker, we have the option to encrypt the system partition and all the other partition on the hard disk,however, to be able to do that we need Trusted platform Module, or TPM. Not all computers have TPM integrated, so when we want to activate BitLocker for a specific partition we get the message: “A compatible Trusted Platform Module (TPM) Security Device must be present on this computer, but a TPM was not found. Please contact your system administrator to enable BitLocker.”
To use BitLocker without Trusted Platform Module, take the following steps:
- Open Local Group Policy Editor ( run – gpedit.mssc or type gpedit.msc in the Search field of the Start Menu.
- In Local Policy Group go to Computer Configuration > Administrative Templates > Windows Components > BitLocker Drive Encryption > Operating System Drives and double click on Require Additional authentication at startup.
- Check Enable in front of Require additional authentication at startup and ensure that the Allow Bitlocker without a compatible TPM is also checked.
- then we have to click on Apply and restart the computer.