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Try these tools for Quick Resolution.

The Internet Explorer icon is missing from your desktop:  http://go.microsoft.com/?linkid=9643462
Fix Runtime Errors in Internet Explorer: http://go.microsoft.com/?linkid=9643461
How to solve Internet Explorer 7 installation problems: http://go.microsoft.com/?linkid=9646979
How to reset Internet Explorer settings: http://go.microsoft.com/?linkid=9646978
How to solve Internet Explorer 8 installation problems: http://go.microsoft.com/?linkid=9646979
How do I uninstall or remove Internet Explorer 8?: http://go.microsoft.com/?linkid=9646982
There are no options under Settings on the Advanced tab of the "Internet Options" dialog box in Windows Internet Explorer 7: http://go.microsoft.com/?linkid=9645382
How do I move the Standard toolbar to a location that is above the Address bar in Internet Explorer 7 or Internet Explorer 8?: http://go.microsoft.com/?linkid=9662687
After I install Windows Internet Explorer 7 on a computer that is running Windows XP with Service Pack 2, a "Restore My Active Desktop" button appears on the desktop: http://go.microsoft.com/?linkid=9643540
After you upgrade to Internet Explorer 7, hyperlinks do not work in Outlook Express: http://go.microsoft.com/?linkid=9657447
Navigation is canceled when you browse to Web pages that are in different Internet Explorer security zones: http://go.microsoft.com/?linkid=9662705
You cannot log in to or connect to secured Web sites in Internet Explorer: http://go.microsoft.com/?linkid=9657448 
The menu bar and the toolbar are missing in Internet Explorer on Windows Vista or Windows XP or in Windows Explorer on Windows XP: http://go.microsoft.com/?linkid=9646673
When I tried to open Device Manager or the Computer Management window, I received an error message: "MMC cannot open the file C:\WINDOWS\system32\devmgmt.msc": http://go.microsoft.com/?linkid=9657414
How do I reset Windows Update components?: http://go.microsoft.com/?linkid=9665683
How to reset Internet Protocol (TCP/IP): http://go.microsoft.com/?linkid=9664547