If you or your IT Dept. have not set a proxy server, then uncheck the
proxy settings from Internet Options. You haven't provided enough
information to get any more specific advice. Refer to this link for
what you need to include in your next newsgroup post:
If the procedures look too complex - and there is no shame in admitting
this isn't your cup of tea - take the machine to a professional
computer repair shop (not your local version of BigStoreUSA).