October 12, 2012

U.S. Securities & Exchange Commission

100 F Street, N.E.

Washington, DC 20549

Re: Vanguard Windsor Funds (the Trust) File No. 2-14336

Commissioners:

Pursuant to Rule 497(j) under the Securities Act of 1933 this letter serves as certification that the Prospectus and Statement of Additional Information with respect to the above-referenced Trust do not differ from that filed in the most recent post-effective amendment, which was filed electronically.

Sincerely,

Michael J. Drayo

Senior Counsel

The Vanguard Group, Inc.