I encrypted my USB with Bitlocker To Go on a Windows 7 box today, went through all of the steps, was told my F: Drive had finished encrypting, but now my USB will not open. It will not show a Password Login screen...nothing. It simply looks like an unavailable drive. The typical 'padlock' driver icon is not there. When I click on it, it says to insert a disk into that drive. When I check the properties of the drive, it shows it as empty. When I tried to reformat the drive so that I could copy my backup to it, it would not let me. Has anyone seen this problem before? If so, do you have a solution?

If you want to format it again, you'll have to use the diskpart clean command. Take great care using that command because it's a wipe. If you run this command on the wrong drive, it will be wiped clean. After the wipe you'll need to create a partition and format for it to be usable again. As far as your main question goes, I don't have any knowledge there. If it were me, since the operation failed, it might be best to start over.

Hi, Please use Bitlocker Recovery Tool try to recovery the data first. For more information, please refer to the following link. http://support.microsoft.com/kb/928201Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.