Resolving "Current CBT FLT Driver Versions Seems to be Invalid" Issue in BDRSuite

Current CBT FLT Driver Versions Seems to be Invalid" Issue in BDRShield

KB ID: 104034
Summary:
This knowledge base article addresses the issue of Hyper-V backups failing with the error message "Current CBT FLT Driver Versions Seems to be Invalid" in Vembu-VMBackup. The error can occur due to reasons such as corrupted or hung VembuCBT drivers, inadequate permissions for the specified path, or outdated VembuCBT drivers.
Cause:
The "Current CBT FLT Driver Versions Seems to be Invalid" error arises from the following circumstances:
1. Corruption or hanging of VembuCBT drivers.
2. Insufficient permissions for the designated path, i.e., <C:/ProgramData/VembuHyperVCBTStore/…>.
3. Usage of outdated VembuCBT drivers.
Solution:
To resolve this issue, follow these steps:
1. Administrative Command Prompt:
Open the command prompt with administrative privileges.
2. Reinstalling VembuCBT Driver:
  1. Navigate to the installation location of Vembu Integration Service.
  2. Execute the following commands to uninstall and reinstall the VembuCBT driver:
  1. VembuInstallationLocation\Drivers\HyperV>HyperVDriverUtil.exe -uninstall
  2. VembuInstallationLocation\Drivers\HyperV>HyperVDriverUtil.exe -install
3. Verification:
After executing the commands, input "fltmc" and press 'Enter' to display the list of drivers. Confirm the presence of VembuCBT.
4. Additional Backup:
As the VembuCBT driver has been reinstalled, perform an additional full backup for all backup jobs configured from the affected host.
Note: By adhering to these instructions, you can rectify the "Current CBT FLT Driver Versions Seems to be Invalid" issue within BDRShield. Following these steps diligently will ensure the restoration of proper backup functionality and eliminate the error message.