Update is available that improves the network performance of Internet Explorer 11 in Windows
Applies To
Warning: The retired, out-of-support Internet Explorer 11 desktop application has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10. For more information, see Internet Explorer 11 desktop app retirement FAQ.
Introduction
This article describes an update that improves the network performance of Windows Internet Explorer 11 in Windows RT 8.1, Windows 8.1, Windows Server 2012 R2, Windows 7 Service Pack 1 (SP1), or Windows Server 2008 R2 SP1.
Resolution
To resolve this issue, install update 2919355 in Windows 8.1 and Windows Server 2012 R2, or install update 2888049 in Windows 7 SP1 and Windows Server 2008 R2 SP1.
More Information
After you install this update, Windows sends ACK messages without a delay when it uses Transmission Control Protocol (TCP) protocol connections.Note The TCP protocol is a common protocol that a computer uses in network connections.
Update information for Windows 8.1 and Windows Server 2012 R2
For more information about how to obtain update 2919355, click the following article number to view the article in the Microsoft Knowledge Base:
2919355 Windows RT 8.1, Windows 8.1, and Windows Server 2012 R2 Update April, 2014
Update information for Windows 7 SP1 and Windows Server 2008 R2 SP1
How to obtain this update
Windows Update
This update is available from Windows Update.
Microsoft Download Center
The following files are available for download from the Microsoft Download Center:
Operating system | Update |
All supported x86-based versions of Windows 7 | |
All supported x64-based versions of Windows 7 | |
All supported x64-based versions of Windows Server 2008 R2 | |
All supported IA-64-based versions of Windows Server 2008 R2 |
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 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 hotfix, you must be running Windows 7 SP1 or Windows Server 2008 R2 SP1. 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 Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2
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.
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