Knowledgebase:
Error Bitlocker Could not Be Enabled
Posted by Lewis Purver on 08 July 2019 04:20 PM

PROBLEM

The BitLocker encryption key cannot be obtained from the Trusted Platform Module (TPM).

SOLUTION


he latest version of Windows 10 now includes a new tool, which allows a MBR install to be converted to GPT with one line from Command Prompt… the tool has additional abilities also.

The following command run from an elevated (administrator) command prompt will allow you to convert the current disk to GPT.

C:\WINDOWS\system32\mbr2gpt.exe /convert /allowFullOS

MBR2GPT.EXE converts a disk from the Master Boot Record (MBR) to the GUID Partition Table (GPT) partition style without modifying or deleting data on the disk. The tool is designed to be run from a Windows Preinstallation Environment (Windows PE) command prompt, but can also be run from the full Windows 10 operating system (OS) by using the /allowFullOS option.

After conversion is completed (for me it only took a few seconds), you need to reboot and change your BIOS settings to re-enable/enable UEFI along with secure boot.

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