Windows 10 BitLocker on a Macbook Pro (13″ Retina Late-2013)

Windows 10 has turned out to be a rather nice operating system. So much so, that I felt compelled to abandon OSX on my Macbook Pro and go Windows only on my Macbook Pro (13″ Retina mid-2013). There are plenty of installation guides out there and I don’t really have anything to add to them. The only challenge for which I didn’t find a ready answer in Google was to implement Bitlocker.

Running the BitLocker wizard prompts Windows to tell you, “This device cannot use a Trusted Platform Module [NOTE: Macbooks don’t have them]. Your administrator must set the ‘Allow BitLocker without a compatible TPM” option in the “Require additional authentication at start-up” policy for OS volumes.

 BitLockerError

The first step in fixing this is to run the Group Policy Editor. To do this, hit start, type gpedit and select the ‘Edit Group Policy’ option.

 GPEStartMenu

When the editor opens, navigate the tree controls on the left to the location specified by the BitLocker error.

GroupPolicyEditor

And double click on the ‘Require additional authentication at startup’ policy. That will open-up this dialog in which you should first select, ‘Enabled’ and then check the ‘Allow BitLocker without a compatible TPM (requires a password or startup key on a USB flash drive)’ option:

 GPEDIalogue

With that done, you’re all set. Return to the BitLocker wizard and run again. Note that if you want to use a USB key to unlock your machine, you might have a few more hoops to jump through but this article seems to explain how to get through them.

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