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When trying to turn on Bitlocker on an external 4 TB USB HDD using Windows 7, there's error A device attached to the system is not functioning. in a rather unhelpful dialog, as shown below:
Now according to this question, there are a few solutions, but the answers aren't very detailed. First of all, the solution in this answer (uninstall KB2799926) is unlikely to work I suppose, because this is external drive and uninstalling that would disable using Bitlocker on it completely. And then answers lack an exact way to format the drive to the maximum capacity, if that's the only way on external drive. So I'm looking for a succinct answer to these:
- Does uninstalling KB2799926 and then reinstalling it later work or not, with external drives?
- What's the exact command/method to format the drive to maximum working capacity?
- Other known-to-work ways to enable Bitlocker on the drive, like acquiring a Win8 PC to do it?