I encountered the same error code 8007139f while trying to enable BitLocker on my system. From what I've researched, this issue can often be related to problems with the drive's partition style or errors in the file system that aren't necessarily picked up by standard checks.
First, make sure your disk partition is set to GPT (GUID Partition Table) and not MBR (Master Boot Record), as BitLocker tends to work more seamlessly with GPT. You can check this by opening "Disk Management," right-clicking on the disk, and selecting "Properties," then navigate to the "Volumes" tab where it shows whether it's GPT or MBR under 'Partition style.'
If you're already using a GPT partition and still facing issues, consider running a disk check. Open Command Prompt as an administrator and type chkdsk /f /r
, then press Enter. This command scans your drive for errors and bad sectors, which could potentially prevent BitLocker from initializing properly.
Lastly, ensure that there are no Group Policies in map that might be interfering with BitLocker operations. You can review these settings by typing gpedit.msc
into Run (Win+R) and navigating to Computer Configuration -> Administrative Templates -> Windows Components -> BitLocker Drive Encryption.
These steps resolved the issue in my case, so hopefully, they will be beneficial for you too!