8-K     UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549     FORM 8-K     CURRENT REPORT PURSUANT TO SECTION 13 OR 15(D) OF THE SECURITIES EXCHANGE ACT OF 1934 Date of Report (Date of earliest event reported) September 2, 2026     Microsoft Corporation       Washington   001-37845   91-1144442 (State or Other Jurisdiction of Incorporation)   (Commission File Number)   (IRS Employer Identification No.)   One Microsoft Way , Redmond , Washington   98052-6399 ( 425 ) 882-8080 www.microsoft.com/investor Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):   ☐ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)   ☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)   ☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))   ☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c)) Securities registered pursuant to Section 12(b) of the Act:   Title of each class   Trading Symbol   Name of exchange on which registered Common stock, $0.00000625 par value per share   MSFT   NASDAQ 3.125% Notes due 2028   MSFT   NASDAQ 2.625% Notes due 2033   MSFT   NASDAQ Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter). Emerging growth company ☐ If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐       Item 7.01. Regulation FD Disclosure On September 2, 2026, Microsoft Corporation (the “Company”) posted presentation materials to its Investor Relations website titled “FY27 Segments and Investor Metrics” announcing a change in reportable segments and investor metrics. Beginning in fiscal year 2027, the Company will manage its operations under this updated reporting structure and report its financial performance based on two reportable segments: (1) Agents and Infra and (2) Devices and Consumer. A copy of the presentation materials is furnished as Exhibit 99.1 to this report. The exhibit furnished on this report under Regulation FD provides a description of our updated reporting structure and presents summary financial information and historical data on a basis consistent with the updated reporting structure. In accordance with General Instruction B.2 of Form 8-K, the information in this Current Report on Form 8-K, including Exhibit 99.1, shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liability of that section, and shall not be incorporated by reference into any registration statement or other document filed under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such filing. Item 9.01. Financial Statements and Exhibits (d) Exhibits:   99.1    Investor Presentation, dated September 2026, titled “FY27 Segments and Investor Metrics” 104    Cover Page Interactive Data File (embedded within the Inline XBRL document) SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.       MICROSOFT CORPORATION     (Registrant) Date: September 2, 2026     /s/ A LICE L. J OLLA     Alice L. Jolla     Corporate Vice President and     Chief Accounting Officer