Filed by Computer Sciences Corporation

Pursuant to Rule 425 under the Securities Act of 1933, as amended

and deemed filed pursuant to Rule 14a-12

under the Securities Exchange Act of 1934, as amended

Subject Company: Computer Sciences Corporation

(Commission File No. 1-4850)

Additional Information and Where to Find It

In connection with the proposed transaction, Everett SpinCo, Inc., a wholly-owned subsidiary of Hewlett Packard Enterprise created for the transaction (“Spinco”), will file with the SEC a registration statement on Form S-4/S-1 containing a prospectus and CSC will file with the SEC a proxy statement on Schedule 14A and a registration statement on Form S-4 containing a prospectus. INVESTORS AND SECURITY HOLDERS ARE ADVISED TO READ THE REGISTRATION STATEMENTS/PROSPECTUSES AND PROXY STATEMENT WHEN THEY BECOME AVAILABLE, BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION ABOUT THE PARTIES AND THE PROPOSED TRANSACTION. Investors and security holders may obtain a free copy of the prospectuses and proxy statement (when available) and other documents filed with the SEC by CSC, Hewlett Packard Enterprise and Spinco at the SEC’s web site at http://www.sec.gov. Free copies of these documents, once available, and each of the companies’ other filings with the SEC, may also be obtained from CSC’s web site at www.csc.com.

This communication is not a solicitation of a proxy from any investor or security holder. However, CSC, Hewlett Packard Enterprise, and certain of their respective directors, executive officers and other members of management and employees, may be deemed to be participants in the solicitation of proxies from stockholders of CSC in respect of the proposed transaction under the rules of the SEC. Information regarding CSC’s directors and executive officers is available in CSC’s 2016 Annual Report on Form 10-K filed with the SEC on June 14, 2016, and in its definitive proxy statement for its annual meeting of stockholders filed on June 24, 2016. Information regarding Hewlett Packard Enterprise’s directors and executive officers is available in Hewlett Packard Enterprise’s 2015 Annual Report on Form 10-K filed with the SEC on December 17, 2015, and in its definitive proxy statement for its annual meeting of stockholders filed on February 12, 2016. These documents as well as other documents filed by CSC, Hewlett Packard Enterprise or Spinco with the SEC can be obtained free of charge from the sources indicated above. Other information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security holdings or otherwise, will be contained in the registration statements, prospectuses and proxy statement and other relevant materials to be filed with the SEC when they become available.

This communication shall not constitute an offer to sell or the solicitation of an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

All statements in this presentation that do not directly and exclusively relate to historical facts constitute “forward-looking statements.” These statements represent the Company’s intentions, plans, expectations and beliefs, and are subject to risks, uncertainties and other factors, many of which are outside the Company’s control. Many factors could cause actual results to differ materially from such forward-looking statements with respect to the transaction announced above including risks relating to the completion of the transaction on anticipated timing, including obtaining shareholder and regulatory approvals, anticipated tax treatment, unforeseen liabilities, future capital expenditures, inability to achieve expected synergies, loss of revenues, delay or business disruption caused by difficulties in integrating the businesses of CSC and Enterprise Services. For a written description of risk factors that could cause actual results in CSC’s business to differ materially from forward looking statements regarding those matters, see the section titled “Risk Factors” in CSC’s Form 10-K for the fiscal year ended April 1, 2016. and any updating information in subsequent SEC filings. The Company disclaims any intention or obligation to update these forward-looking statements whether as a result of subsequent event or otherwise, except as required by law.