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Troubleshooting - Device Driver Is Not Accessible

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WARNING: If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Cristalink Limited cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk.

Problem Description

The Firestreamer-RM Control Panel displays the following message: "The Firestreamer-RM device driver is not accessible. Please verify that the current user account has sufficient rights to access Firestreamer-RM. If the problem persists, re-install the application".

Troubleshooting Recommendations

If you are not logged on as an administrator, you need to set appropriate permissions on Firestreamer-RM and Removable Storage objects.

If you are logged on as an administrator, then the problem is most likely caused by faulty third party software installed on your computer. Please follow the steps below.

  1. Click Start, click Control Panel, click Performance and Maintenance, and then click System.
  2. Click the Hardware tab, and then click Device Manager. Windows Device Manager will show up.
  3. Expand Tape Drives.
  4. Right-click Firestreamer-RM Drive, and then click Properties.
  5. Click the Driver tab, and then click Driver Details.
  6. In Driver Files, there should be only two drivers listed: NRDVDStr.sys and NRDVDTap.sys. Any other drivers may cause malfunction of Firestreamer-RM. In particular, the following third party driver has been confirmed to be defective: PxHelp20.sys.

To temporarily disable all third party tape filter drivers on your computer, follow the steps below.

  1. Open Registry Editor.
  2. On the left pane, click HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{6D807884-7D21-11CF-801C-08002BE10318}.
  3. On the right pane, right-click the UpperFilters and LowerFilters values, if any, and rename them to UpperFilters1 and LowerFilters1, respectively.
  4. Restart your computer.
  5. Open the Firestreamer-RM Control Panel to verify that Firestreamer-RM is functioning properly.

If you need to re-enable the previously disabled third party tape filter drivers, follow the steps below.

  1. Open Registry Editor.
  2. On the left pane, click HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{6D807884-7D21-11CF-801C-08002BE10318}.
  3. On the right pane, rename the UpperFilters1 and LowerFilters1 values, if any, to UpperFilters and LowerFilters, respectively.
  4. Restart your computer.

 

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