Touch keyboard displays and functions incorrectly on a Windows 8-based touch screen computer

Á við um: Windows 8Windows 8 EnterpriseWindows 8 Pro


Assume that you have a Windows 8-based computer that has a large touch screen. When you use the touch keyboard on the screen, you encounter the following issues:
  • The size of the displayed touch keyboard is too small for typing.
  • You experience missed key entries when you touch the keys.


This issue occurs because the MonitorSize value in the followingregistry key is not set correctly:

Note This type of registry value is a REG_SZ string. You can set a decimal value to this string, such as 22.5.


This hotfix is also available at Microsoft Update Catalog.

After you apply this hotfix, the touch keyboard can be scaled to a larger size, and the keys can be touched accurately.

Hotfix information

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.


To apply this hotfix, you must be running Windows 8.

Registry information

To apply this hotfix, 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.


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

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