I Want To return to originalExplorer6

All you need to do is to remove the program and reload the Explorer 6. I didn't like the 7 version at first but now I find it has many features that I like and prefer it over 6.

See How to uninstall Internet Explorer 7 (http://support.microsoft.com/kb/927177). Another option is installing Firefox or another browser. Eventually, expect the Windows Update site and perhaps others to require IE7 or later. Leaving IE7 installed may save you a reinstall later.