On November 2, 2012, Microsoft Corporation (the "Company") entered into an Underwriting Agreement (the "Underwriting Agreement") with the several underwriters named therein, for which Barclays Capital Inc., J.P. Morgan Securities LLC and UBS Securities LLC acted as representatives, for the issuance and sale by the Company of $600,000,000 aggregate principal amount of its 0.875% Notes due 2017 (the "2017 Notes"), $750,000,000 aggregate principal amount of its 2.125% Notes due 2022 (the "2022 Notes") and $900,000,000 aggregate principal amount of its 3.500% Notes due 2042 (the "2042 Notes" and, together with the 2017 Notes and the 2022 Notes, the "Notes").

The Notes will be issued pursuant to an indenture, dated as of May 18, 2009 (the "Base Indenture"), between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee (the "Trustee"), as amended and supplemented by the Fourth Supplemental Indenture thereto, to be dated as of November 7, 2012, between the Company and the Trustee (the "Supplemental Indenture" and, together with the Base Indenture, the "Indenture"). The Base Indenture is set forth as Exhibit 4.1 to the Company's Registration Statement on Form S-3 (File No. 333-184717), filed on November 2, 2012, and is incorporated herein by reference.

In connection with the public offering of the Notes, the Company has filed with the Securities and Exchange Commission a Prospectus dated November 2, 2012 and a related Prospectus Supplement dated November 2, 2012 (File No. 333-184717).

Interest on the Notes will be payable semi-annually on May 15 and November 15 of each year, commencing on May 15, 2013, to holders of record on the preceding May 1 or November 1, as the case may be.

The 2017 Notes will mature on November 15, 2017, the 2022 Notes will mature on November 15, 2022 and the 2042 Notes will mature on November 15, 2042.

The Notes will be the Company's senior unsecured obligations and will rank equally with the Company's other unsecured and unsubordinated debt from time to time outstanding.

The foregoing descriptions of the Underwriting Agreement and the Supplemental Indenture (including the forms of the Notes) are qualified in their entirety by the terms of such agreements. Please refer to such agreements, which are incorporated herein by reference and attached hereto as Exhibits 1.1 and 4.1, respectively.

(d) Exhibits

Exhibit
  No.                                     Description

1.1          Underwriting Agreement, dated November 2, 2012

4.1          Fourth Supplemental Indenture, dated as of November 7, 2012, between
             Microsoft Corporation and The Bank of New York Mellon Trust Company,
             N.A., as Trustee, to the Indenture, dated as of May 18, 2009, between
             Microsoft Corporation and The Bank of New York Mellon Trust Company,
             N.A., as Trustee

4.2          Form of Global Note representing the 2017 Notes (included in Exhibit
             4.1)

4.3          Form of Global Note representing the 2022 Notes (included in Exhibit
             4.1)

4.4          Form of Global Note representing the 2042 Notes (included in Exhibit
             4.1)

5.1          Opinion of Simpson Thacher & Bartlett LLP

5.2          Opinion of Keith R. Dolliver, Esq., Associate General Counsel, Legal
             and Corporate Affairs, and Assistant Secretary of Microsoft
             Corporation