Release Notes

Welcome to Internet Explorer 11

To learn more about the Web Platform, please see the Internet Explorer 11 Developer Guide. To view issues found by our community or to submit more feedback please visit the IE Feedback site.

Internet Explorer 11 on Windows 8.1

IE11 is automatically available on Windows 8.1 and Windows Server 2012 R2! For a list of known issues on these configurations please visit the Windows 8.1 release notes or Windows Server 2012 R2 release notes depending on your installation. For details on upgrading from the Windows 8.1 Preview, please visit the update instructions.

Internet Explorer 11 on Windows 7

Internet Explorer 11 requires Windows 7 with Service Pack 1 to be installed.  For more information about Service Pack 1(SP1) see, KB 976932 - Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2. See prerequisites section below for details on other pre-requisites needed for Internet Explorer 11 Developer Preview to function properly.

Internet Explorer 11 for Windows 7 SP1 Installation Prerequisites

The installation of Internet Explorer 11 for Windows 7 SP1 includes the installation of some additional required components and prerequisites. Uninstalling one of these prerequisites will result in uninstallation of IE11:


If any of these required components and prerequisites are uninstalled, Internet Explorer 11 may experience reliability issues.  Uninstalling Internet Explorer 11 for Windows 7 SP1 will leave the prerequisites still installed.  For a list of required prerequisites, see KB 2847882 - Internet Explorer 11 for Windows 7 Installation Prerequisites

Error when navigating to some sites after uninstalling Internet Explorer 11 on Windows 7

Some users have reported that after uninstalling IE11 on Windows 7, they temporarily experience a ‘This Page Can't Be Displayed (404)’ error on pages they have previously visited. To work around this issue, try clearing your Temporary Internet Files or browser cache. To do this, follow the steps outlined in this article. Microsoft is currently investigating this issue.



Welcome to Internet Explorer 10

To learn more about the Web Platform, please see the Internet Explorer 10 Developer Guide.

Internet Explorer 10 on Windows 8

Please see sure to check the Windows 8 page for system requirements, release notes, upgrade instructions, and other details on how to deploy and manage Internet Explorer 10 for Windows 8. You may also find additional assistance in the Windows 8 forums and FAQ.

Internet Explorer 10 on Windows 7

Internet Explorer 10 requires Windows 7 with Service Pack 1 installed. For more information about Service Pack 1(SP1) see, KB 976932 - Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2.

Internet Explorer 10 on Windows Server 2008 R2

Internet Explorer 10 requires Windows Server 2008 R2 with Service Pack 1 installed. For more information about Service Pack 1(SP1) see, KB 976932 - Information about Service Pack 1 for Windows 7 and for Windows Server 2008 R2. Attempting to install on Windows Server 2008 R2 RTM will fail with the error message, “Operating System is not supported: Internet Explorer 10 can only be installed on Windows 7 Service Pack 1 or higher”. Internet Explorer 10 is supported only Windows Server 2008 R2 SP1.

Internet Explorer 10 for Windows 7 SP1 Installation Prerequisites

The installation of Internet Explorer 10 for Windows 7 SP1 includes the installation of some additional required components and prerequisites, based on the target operating system. Uninstalling one of these prerequisites, KB 2670838 - A platform update is available for Windows 7 SP1 and Windows Server 2008 R2 SP1, will result in uninstallation of IE10. If any of the other required components and prerequisites are uninstalled, Internet Explorer 10 may experience reliability issues. If uninstalling the RTM version of KB2670838 from a previous Release Preview version, you will need to uninstall the Release Preview version of KB2670838 as well before it appears as completely removed. Uninstalling Internet Explorer 10 for Windows 7 SP1 will leave the prerequisites still installed. For a list of required prerequisites, see KB 2818833 - Internet Explorer 10 for Windows 7 Installation Prerequisites.

Upgrading to Windows 8

After installing Internet Explorer 10 on Windows 7 SP1, if a user upgrades the operating system to Windows 8 the user’s browsing history and cookies do not get migrated. As a workaround, you can uninstall Internet Explorer 10 before upgrading to Windows 8. This is a known issue and will be addressed in a future update.

DirectX Software Development Kit

Windows 7 DirectX developers using the June 2010 DirectX Software Development Kit, will need to update their development environments once Internet Explorer 10 and corresponding platform update have been installed. For details, see KB 2670838 - A platform update is available for Windows 7 SP1 and Windows Server 2008 R2 SP1.

Emoji characters and control glyphs are missing

If you notice that emoji characters and control glyphs are missing, see KB 2780340 - Emoji characters and control glyphs are missing in Internet Explorer on Windows 7.

Microsoft Office 2003 and Microsoft Office 2007

After Internet Explorer 10 installation, attempts to insert a hyperlink may cause an error in some Microsoft Office 2003 and Microsoft Office 2007 applications. This is a known issue and will be addressed in a future update.

Setup Failures

The Setup Troubleshooting Guide is available for reference for any general setup failures you experience.