Thursday, March 5, 2009

Upgrading to Internet Explorer 8 Release Candidate 1

Just like for previous beta releases, I am going to guide you through the upgrade steps for Internet Explorer 8 Release Candidate 1 (IE8 RC1).

Before we begin, let me summarize the major changes you will see when installing IE8 RC1:

1. If you are a Windows Vista or Windows Server 2008 user and you are upgrading from IE8 Beta 1 or Beta 2 to IE8 RC1, you are no longer required to manually uninstall earlier IE8 builds. Instead, IE8 RC1 installer will automatically upgrade your machine from the earlier IE8 builds to the latest IE8 build, all with a single reboot.

2. There is a new pre-requisite for IE8 RC1 (KB957388). This update supersedes KB943302 and KB957055 and will be automatically installed as part of your RC1 upgrade, as long as you keep “Install the latest updates” checkbox checked. This update addresses known application compatibility issues in Windows Vista and Windows Server 2008 and improves the performance and reliability of IE8.

3. All IE8 Beta 1 and Beta 2 users will be offered IE8 RC1 via Windows Update in 25 languages. For Windows XP and Windows Server 2003, the IE language that gets offered via Windows Update will match the base OS language. For Windows Vista and Windows Server 2008, the IE language that gets offered via Windows Update will match the Active Language that the user selected for their account.

Note: If you are running Windows 7 Beta, you will not be able to install IE8 RC1. You will get an error message saying that your operating system is not supported since IE8 already ships in Win7. The IE8 RC1 available from Microsoft Download Center is a standalone upgrade for downlevel version of the OS only: Windows Vista, Windows XP, Windows Server 2008 and Window Server 2003.

Here are some additional resources you can refer to during the RC1 installation:

* System requirements for RC1 are the same as Beta1 and Beta2.
* Release notes for RC1 outline a few scenarios you should watch out for when installing IE8 RC1.
* Internet Explorer Support for any problems during your installation.

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