We began evaluating FDE on windows 7 systems last week. Today two computers rebooted to bluescreens. There were errors about the fde_driver_setup.log like this:
DeviceDriverManager::UpdateDriver UpdDriverFunc failed (error: 0x430, hwid: root\esvidev)
DeviceDriverManager::InstallDriver UpdateDriver failed (error: 0xB7)
InstallDrivers -> InstallDriver failed. Stop installing.
DeviceDriverManager::InstallDriver -> (infpath: C:\Windows\NAC\nbfdenc\nbfdenc.inf, regkeyparam: SYSTEM\CurrentControlSet\Services\nbfdenc\Paramete rs)
Virtual device should be created.
DeviceDriverManager::UpdateDriver UpdDriverFunc failed (error: 0x430, hwid: root\esvidev)
DeviceDriverManager::InstallDriver UpdateDriver failed (error: 0xB7)
InstallDrivers -> InstallDriver failed. Stop installing.

I registry key SYSTEM\CurrentControlSet\Services\nbfdenc didn't exist

We reimaged the computers before I could take copies for the files. I hope to never have the opportunity to look for those logs again. I've learned software often equals the death of hope. :-)

Anyone seen something similar?

Thanks