How to troubleshoot installation problems during Internet Explorer 8 Beta 2

In this addition if you cannot install Internet Explorer 8 Beta 2 and facing problem, to troubleshoot its follow these steps:

1. Restart your computer so that any pending updates that require a restart can be installed.
2. Make sure that the Windows Update service is running. To do this, follow these steps:
1. Click Start, click Run, type services.msc, and then press ENTER.
2. In the Services list, locate the Windows Update service. If the Windows Update service is not running, start it.

Internet Explorer 8 Beta 2 may need the following updates, depending on the operating system that you are running. The Internet Explorer 8 Beta 2 Setup program automatically installs the necessary updates for the system.

* Hotfix 932823:
932823 You may be unable to use Windows Internet Explorer to download files on a computer that is running Windows Server 2003 or Windows XP
Install this hotfix to resolve an issue in which a user cannot use Internet Explorer 7 to download files. This issue occurs on computers that are running Windows XP with Input Method Editor enabled.
* Update 946501:
946501 An access violation occurs when an application exits on a Windows XP SP2-based multi-core computer
Install this update to resolve an issue in which a window that has a language bar crashes when it exits. This issue occurs on multi-core computers that are running Windows XP Service Pack 2.
* Update 943302:
943302 December 2007 Windows Vista Application Compatibility Update
Install this update to resolve a set of known application compatibility issues with Windows Vista.
* Update 956586:
956586 Software updates that are required to be installed before you install Internet Explorer 8 Beta 2 on a Windows Vista-based computer
* Update 937287:
937287 A software update is available for the Windows Vista installation software feature
The Internet Explorer 8 Beta 2 Setup program does not automatically install this update. However, it is a required update for x64-based versions of Windows Vista. Install this update to enable future updates to be installed successfully on all editions of Windows Vista.

When you install Internet Explorer 8 Beta 2, you may receive the following error message:
Setup cannot continue because one or more updates required to install Windows Internet Explorer 8 are not present. Double-click the “Internet Explorer Troubleshooting” shortcut on your desktop to install them separately and then reinstall Windows Internet Explorer 8.
To work around this issue, you must install the Internet Explorer 8 Beta 2 prerequisites manually.

source: http://support.microsoft.com/kb/318378