Window is blank when you run a RemoteApp program that is located on a Windows 8 or Windows Server 2012-based server

Applies to: Windows Server 2012 DatacenterWindows Server 2012 DatacenterWindows Server 2012 Standard


Assume that you try to run an application in a RemoteApp environment in which a child window is running in a separate thread in Windows 8 or Windows Server 2012. Sometimes, the child window becomes blank if the application calls the RedrawWindow function.

Note When you try to resize, minimize, or maximize the window, or you hover over the window elements, this issue can be worked around.

How to obtain this update or hotfix

To resolve this issue, we have released hotfixes for Windows 8 and Windows Server 2012, and released updates for Windows 8 and Windows Server 2012 .

The update rollup fixes many other issues in addition to the issue that the hotfix fixes. We recommend that you use the update rollup. The update rollup is larger than the hotfix. Therefore, the update rollup takes longer to download.

Update for Windows 8 or Windows Server 2012

The following update rollup is available.

For Windows 8 or Windows Server 2012

Get update rollup 2975331

Hotfix for Windows 8 or Windows Server 2012

A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem.

If the hotfix is available for download, there is a "Hotfix Download Available" section at the top of this Knowledge Base article. If this section does not appear, submit a request to Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft website: Note The "Hotfix Download Available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.


There are no prerequisites for installing this hotfix.

Registry information

To use the hotfix in this package, you do not have to make any changes to the registry.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace a previously released hotfix.

More Information

For more information about software update terminology, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.