using the Control Panel > Add/Remove Programs utility.
It will be listed there as Windows Internet Explorer 8, (not just Internet Explorer 8), and uninstalling it will revert back automatically to IE7.
One proviso, if you installed IE8 before Windows Update installed SP3, then that won't work. To solve that, you would have to first uninstall SP3, then uninstall IE8 to revert back to IE7.
More information in Microsoft's Knowledge Based article here;
I hope that helps.
i have a pentium 4 250gig hard drive 768 ram and windowsxp professional
my computer was running quiete nicely until i installed internet explorer 8 now nothing but trouble and errors
i would like to know how to uninstall internet explorer 8 and re install internet explorer7