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Article ID: 2545698 - Last Review: February 29, 2012 - Revision: 7.0

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SYMPTOMS

Assume that you install Windows Internet Explorer 9 on a computer that is running Windows 7 or Windows Server 2008 R2. In this situation, text that is displayed in the following core fonts in Internet Explorer 9 appears blurred compared with the same text and fonts in Windows Internet Explorer 8:
  • Arial (font style: Regular; font size: 8-point, 9-point, and 10-point)
  • Verdana (font style: Regular; font size: 8-point, 9-point, and 10-point)
  • Tahoma (font style: Regular; font size: 8-point, 9-point, and 10-point)
Note: There may be additional issues such as font tuning and hardware and software settings that may be causing additional issues with Font clarity. To check for and resolve these other possible issues see the following Article on the Microsoft website:

Fonts appear blurry in Internet Explorer 9 (http://support.microsoft.com/kb/2638466)

CAUSE

This issue occurs because of a design change to how Internet Explorer 9 renders text. By default, Internet Explorer 9 uses sub-pixel positioned ClearType to render text by using DirectWrite, whereas Internet Explorer 8 uses whole-pixel positioned ClearType to render text by using the Microsoft Windows graphics device interface (GDI).

MORE INFORMATION

Update information

How to obtain this update

The following files are available for download from the Microsoft Download Center:
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Operating systemUpdate
All supported x86-based versions of Windows Vista
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=b18b8ae8-fe47-42ae-a7b7-659334bc2c8e)
All supported x64-based versions of Windows Vista
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=690d46a5-fad8-4ce5-aaf4-1eeff5cddd8e)
All supported x86-based versions of Windows Server 2008
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=fc16bbfa-27fb-45e5-a8e2-4977cc7640c0)
All supported x64-based versions of Windows Server 2008
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=011acc24-6639-4c73-91af-7b88c65d1b8e)
All supported IA-64-based versions of Windows Server 2008
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=16a1a23c-24dd-4039-ad2a-9e891d47c883)
All supported x86-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=4977c641-7c51-43a0-8a17-96c126ec5949)
All supported x64-based versions of Windows 7
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=7dae0343-8c44-4945-9a64-43104472fc97)
All supported x64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=08a5d1de-4579-4d41-b350-c56f48f09be5)
All supported IA-64-based versions of Windows Server 2008 R2
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Download
Download the update package now. (http://www.microsoft.com/downloads/details.aspx?FamilyId=d99315f3-1283-4de0-a2b6-2abc1f71a883)
For more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:
119591  (http://support.microsoft.com/kb/119591/ ) How to obtain Microsoft support files from online services
Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file.

Prerequisites

To apply this update, you must be running one of the following operating systems:
  • Windows Vista Service Pack 2 (SP2)
  • Windows Server 2008 Service Pack 2 (SP2)
  • Windows 7
  • Windows 7 Service Pack 1 (SP1)
  • Windows Server 2008 R2
  • Windows Server 2008 R2 Service Pack 1 (SP1)
For more information about how to obtain a Windows Vista service pack, click the following article number to view the article in the Microsoft Knowledge Base:
935791  (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack
For more information about how to obtain a Windows Server 2008 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
968849  (http://support.microsoft.com/kb/968849/ ) How to obtain the latest service pack for Windows Server 2008
For more information about how to obtain a Windows 7 or Windows Server 2008 R2 service pack, click the following article number to view the article in the Microsoft Knowledge Base:
976932  (http://support.microsoft.com/kb/976932/ ) Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2

Registry information

To use the update 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 update.

Update replacement information

This update does not replace a previously released update.

File information

Click here to view or hide detailed information

APPLIES TO
  • Windows 7 Enterprise
  • Windows 7 Home Basic
  • Windows 7 Home Premium
  • Windows 7 Professional
  • Windows 7 Starter
  • Windows 7 Ultimate
  • 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 Web Server 2008 R2
  • Windows Vista Business
  • Windows Vista Business 64-bit Edition
  • Windows Vista Enterprise
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic
  • Windows Vista Home Basic 64-bit Edition
  • Windows Vista Home Premium
  • Windows Vista Home Premium 64-bit Edition
  • Windows Vista Starter
  • Windows Vista Ultimate
  • Windows Vista Ultimate 64-bit Edition
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Foundation
  • Windows Server 2008 Standard
  • Windows Server 2008 Standard without Hyper-V
  • Windows Web Server 2008
Keywords: 
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