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Code signing for device drivers

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User Configuration\Administrative Templates\System

Description

Determines how the system responds when a user tries to install device driver files that are not digitally signed.

This policy establishes the least secure response permitted on the systems of users in the group. Users can use System in Control Panel to select a more secure setting, but when this policy is enabled, the system does not implement any setting less secure than the one the policy established.

When you enable this policy, use the drop-down box to specify the desired response.

  • Ignore directs the system to proceed with the installation even if it includes unsigned files.
  • Warn notifies the user that files are not digitally signed and lets the user decide whether to stop or to proceed with the installation and whether to permit unsigned files to be installed. Warn is the default.
  • Block directs the system to refuse to install unsigned files. As a result, the installation stops, and none of the files in the driver package is installed.

Tip-icon Tip

To change driver file security without setting a policy, use System in Control Panel. Right-click My Computer, click Properties, click the Hardware tab, and then click the Driver Signing button.