
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.

This deadlock situation occurs when a WDDM driver is running. This issue occurs because of a deadlock between the Graphics Device Interface (GDI) bit-block transfer and the window creation. You extend the display to an additional monitor. You repeatedly open and then close a window. This issue may occur if one or more of the following conditions are true: When you use a Windows Display Driver Model (WDDM) driver on a computer that is running Windows 7 or Windows Server 2008 R2, the computer may stop responding.

Windows 7 Enterprise Windows 7 Home Premium Windows 7 Home Basic Windows 7 Professional Windows 7 Starter Windows 7 Ultimate Windows 7 Service Pack 1 Windows Server 2008 R2 Datacenter Windows Server 2008 R2 Enterprise Windows Server 2008 R2 Foundation Windows Server 2008 R2 Standard Windows Server 2008 R2 for Itanium-Based Systems Windows Server 2008 R2 Web Edition Windows Server 2008 R2 Service Pack 1 More.
