When you use a large display at close distances (for example, a TV is used as a desktop monitor) for a Windows 8.1 based computer, the content in Internet Explorer 11 may be scaled larger than the intended size.
To resolve this problem, install the most recent cumulative security update for Internet Explorer. To do this, go to Microsoft Update. After you apply the most recent cumulative security update for Internet Explorer, the scale factor of Internet Explorer 11 can match the scale factor of Windows Desktop when you run in legacy scaling mode.
For technical information about the most recent cumulative security update for Internet Explorer, go to the following Microsoft website:
http://www.microsoft.com/technet/security/current.aspxNote This update was first included in security update 2977629.
For more information about security update 2977629, click the following article number to view the article in the Microsoft Knowledge Base:
2977629 MS14-052: Cumulative security update for Internet Explorer: September 9, 2014
Windows 8.1 uses a heuristic to predict viewing distance when you select a default scale factor in response to DPI. For large displays such as TVs, Windows expects the screen to be across the room instead of on the desk, and uses a scale factor that makes the content large and readable. Therefore, if you use one of these devices as a desktop monitor, the content in Internet Explorer 11 may be larger than the intended size. After you apply this update, you can switch to legacy scaling mode so that Internet Explorer can use the same scale factor as the Windows Desktop, and a specific scale factor can be selected that overrides the default scale factor. To do this, you can click Start, click Control Panel, click Appearance and Personalization, and then you can select one scaling level for all displays.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
See the terminology that Microsoft uses to describe software updates.