regedit from Start --> Run
and find the key:
HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Main
Change the "RunOnceHasShown" on the right to: 1
You can make a script that applies this to all workstations when they login in
or
Click Start > Run and type the following into the Open box:
gpedit.msc
Click OK.
Using the left hand pane, navigate as follows:
User Configuration
> Administrative Templates
> Windows Components
> Internet Explorer
In the right-hand side pane double-click on Prevent performance of First Run Customize settings
Change the setting for Prevent performance of First Run Customize settings to Enabled and use the drop-down box to select Go directly to home page
Click OK and close Group Policy
Restart Internet Explorer 7