Your initial assumption was incorrect and you've messed around with
Windows so much that you might need a clean install. First try this, and
let's hope it works:
"How do I uninstall or remove Internet Explorer 8?"
Note: If you installed SP 3 /after/ you first installed IE 8, you will
need to uninstall SP 3 /first/ before you can remove IE 8.
With any luck, this will restore your copy of Windows to a working
version of IE 7. If IE 7 is not working, uninstall it:
"How to uninstall Internet Explorer 7"
The proviso about SP 3 applies.
With any luck, this will return your copy of Windows to a working
version of IE 6.
Once you are /sure/ that your computer is working properly, you can
upgrade to IE 8.
Errare humanum est
> I was moving a shortcut which was right beside the Internet Explorer 8
> shortcut on the quick launch and the icon disappeared, I assumed that it must
> have gone into the IE application somehow. I installed and reinstalled.First
> It went back to IE7 and worked so I reinstalled 8 again and it went back to
> not working then I reset Internet Explorer to no avail, the Internet Explorer
> with no add-ons does not work either. Then I tried to go back to 7 and I get
> the message that it cannot install because of a newer version. I have got
> Windowsxp and service pack 3. I unpacked IE8 to a folder on the desktop and
> Iexplore will work from there but not the one in program files. How can this
> be fixed? Thank you