I have read the responses to other complaints on this message and I’m not sure my situation is quite the same. I’ve had a SanDisk 4GB Cruzer Blade for some time. It has always worked and been accessible. A few days ago, I received the message in the subject line when my PC rebooted. The drive is still visible in my Windows 7 Explorer and I can open the drive and see all the files including the dmBackup.dll in the My Vaults directory. This seems to be some pathing issue causing the program to not see a file that is clearly there. I copied the dmBackup.dll from the drive to my PC and ran the RunSanDiskSecureAccess_Win.exe where it recreated the file but still gave the same error. I have encrypted files on this drive that I want to retrieve and I can still see are present. There must be some solution. If the drive was bad, then I wouldn’t be able to see the files. If the response from the other thread that this is unrecoverable is true then I will definitely not be purchasing any future products from SanDisk. A failed drive is one thing I understand but a buggy program is not.