after an unexpected restart on a windows server 2021 r2 server, the server is unable to detect the EBS drives. i have attached about 4 drives but they are invisible/not detected in device manager/disk manager, i.e., only c drive is visible in the disk manager..refresh/rescan disk didnt help either.

Could someone advice on how we can get back the disks.

  • Have you checked the Windows Event Logs? – Anonymous Nov 21 '14 at 10:18
  • yea..but i see no difference even with device manager. – Pasha Nov 22 '14 at 3:04

I would suggest following the step here, update the PV driver, and this fixed the issue.


  1. Create an AMI copy from the AWS console as a backup: http://docs.aws.amazon.com/AWSEC2/latest/WindowsGuide/Creating_EBSbacked_WinAMI.html

  2. Uninstall the AWS PV Driver Version 7.2.0 via "Programs and Features.”

  3. Reboot the machine when prompted by the uninstaller.

  4. Download and install the AWS PV Driver Installer from: https://s3.amazonaws.com/ec2-windows-drivers/AWS+PV+7.2.0/MicrosoftSigned/Installer/AWSPVDriverPackager.exe

  5. Reboot when prompted by the installer.

  6. Download and run the following script: http://ec2-downloads-windows.s3.amazonaws.com/Scripts/RemediateDriverIssue.zip, this will ensure that this issue is corrected ongoing.

| improve this answer | |

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.