Hi! Yesterday, everything was OK. Today, I have a BIG problem. Please, help me out!
I am using VeraCrypt 1.17 (64-bit) under Windows 8.
I encrypted a whole external 1 TB USB HDD by creating both a a normal volume and a hidden volume.
Everything was OK: I was able to mount both volumes with their respective passwords.
However, suddenly, THIS happened:
The volumes can still be mounted (normal = 931 GB and hidden = 929 GB), but when I right click on them and select "Open" from the menu, this error message appears: "You need to format the disk in drive N: before you can use it". Also, the HDD is not seen by Windows Explorer. Please, see the attached images.
I had valuable information inside the HDD. Could you please help me out?


Comments: If you are willing to use the DriveCleanup utility below to remove all currently non present USB Storage Devices, Disks, CDROMs, Floppies, Storage Volumes and WPD devices from the device tree. Furthermore it removes orphaned registry items related to these device types.
I request you use version 0.9.0 since I have not tested 1.2.0 version that was recently released. The 1.1 version did not wipe existing devices from the registry.
Create a directory and unzip the software files into the directory.
Start a command line prompt as Administrator.
In the command window, change into the directory where you unzipped the files. If you are using 64-bit Windows OS, change into x64 subdirectory.
Dismount all VeraCrypt/TrueCrypt volumes.
Use the following command to view what the DriveCleanup utility will remove from the registry:
drivecleanup -T
To remove items the registry:
drivecleanup
Reboot PC after running utility.
Any USB that was not currently connected to your PC will be install again by Windows and you may have to manually reassign the drive letters in Windows Disk Management if you had certain drive letters for an external hard drive or thumbdrives.
http://www.uwe-sieber.de/drivetools_e.html
http://www.uwe-sieber.de/files/drivecleanup090.zip
I have performed this numerous times on my Win 7 Pro 64-bit Windows system to remove all registry entries including valid devices due to tests with file containers.
If anyone knows of a better free utility, please post it.