Unknown Device Showing in Device Manager
On some machines we have noticed the presence of an unknown device in the device manager that doesn’t seem to be tied to any piece of hardware in the specific machines.
The Compatible ID’s for the device are as follows:
DETECTEDInternal\blbdrive
DETECTED\blbdrive
Now, it seems that this points to a file in C:\Windows\System32\Drivers called blbdrive.sys. Our best guess is that it has something to do with the Block Level Backup Engine (which is responsible for image-based backups in Windows Vista and higher, through a feature called CompletePC Backup and Restore), but we’re not 100% sure. If anyone has any information on this please let us know.