Hi Joseph,
Thanks for the post!
When you launch IE, what's the error message you got?
Please logon as administrator, click Start, input msconfig in the search box, in th General tab, select Selective Startup, uncheck "Load Startup items". In the Services tab, check "Hide all Microsoft services", then click disable all.
Then apply and OK. Restart the computer to check if you can launch Internet Explorer. If it works here, please follow the steps in this KB
http://support.microsoft.com/kb/929135 to find the cause.
If it doesn't work, please tell us more details about the error message and the OS version.
Regards,
Miya
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