The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix. If the hotfix is available for download, there is a 'Hotfix download available' section at the top of this Knowledge Base article. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next software update that contains this hotfix. This hotfix might receive additional testing. Apply this hotfix only to systems that are experiencing the problem described in this article.

However, this hotfix is intended to correct only the problem that is described in this article. Resolution Hotfix informationĪ supported hotfix is available from Microsoft. Therefore, in certain situations when the Stream.sys component references user-mode handles in kernel mode and Driver Verifier is enabled, this issue occurs. The computer crashes if this security validation does not occur in the context of a process that is not under the LocalSystem account.

When Driver Verifier is enabled, every kernel mode reference to a user mode handle receives security validation. The issue occurs because of an error in the Stream.sys component. The parameters in this Stop error message may vary, depending on the configuration of the computer. Not all '0x000000C4' Stop errors are caused by this issue. Stop 0x000000C4 ( Parameter1, Parameter2, Parameter3, Parameter4) In this scenario, you receive a Stop error message that resembles the following: For example, you run the Amcap.exe application to use the camera. Or, you run an application that interacts with a device driver. You run a test that is included in Windows Logo Kit (WLK).

For example, you start the Driver Verifier Manager (Verifier.exe) tool and verify all drivers by selecting the Automatically select all drivers installed on this computer check box. You enable Driver Verifier on a computer that is running Windows 7 or Windows Server 2008 R2. Not sure if this is the right fix? We've added this issue to our memory dump diagnostic which can confirm. Windows 7 Service Pack 1 Windows 7 Enterprise Windows 7 Home Basic Windows 7 Home Premium Windows 7 Professional Windows 7 Starter Windows 7 Ultimate Windows Server 2008 R2 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Server 2008 R2 Web Edition More.

How to stop driver verifier