SEC Form 4
FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
GATES WILLIAM H III
(Last) (First) (Middle)
ONE MICROSOFT WAY
(Street)
REDMOND WA 98052
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
MICROSOFT CORP [ MSFT ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
05/03/2007
4. If Amendment, Date of Original Filed (Month/Day/Year)
 6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/03/2007 S 4,700 D $30.985 912,494,636 D
Common Stock 05/03/2007 S 5,852 D $30.983 912,488,784 D
Common Stock 05/03/2007 S 5,102 D $30.982 912,483,682 D
Common Stock 05/03/2007 S 544,488 D $30.98 911,939,194 D
Common Stock 05/03/2007 S 5,103 D $30.976 911,934,091 D
Common Stock 05/03/2007 S 26,828 D $30.975 911,907,263 D
Common Stock 05/03/2007 S 24,500 D $30.973 911,882,763 D
Common Stock 05/03/2007 S 1,198,305 D $30.97 910,684,458 D
Common Stock 05/03/2007 S 7,200 D $30.967 910,677,258 D
Common Stock 05/03/2007 S 16,280 D $30.966 910,660,978 D
Common Stock 05/03/2007 S 45,285 D $30.965 910,615,693 D
Common Stock 05/03/2007 S 18,200 D $30.963 910,597,493 D
Common Stock 05/03/2007 S 9,600 D $30.962 910,587,893 D
Common Stock 05/03/2007 S 3,600 D $30.961 910,584,293 D
Common Stock 05/03/2007 S 678,738 D $30.96 909,905,555 D
Common Stock 05/03/2007 S 8,870 D $30.955 909,896,685 D
Common Stock 05/03/2007 S 6,600 D $30.952 909,890,085 D
Common Stock 05/03/2007 S 9,400 D $30.951 909,880,685 D
Common Stock 05/03/2007 S 274,378 D $30.95 909,606,307 D
Common Stock 05/03/2007 S 9,100 D $30.948 909,597,207 D
Common Stock 05/03/2007 S 19,754 D $30.945 909,577,453 D
Common Stock 05/03/2007 S 6,200 D $30.942 909,571,253 D
Common Stock 05/03/2007 S 212,517 D $30.94 909,358,736 D
Common Stock 05/03/2007 S 5,100 D $30.938 909,353,636 D
Common Stock 05/03/2007 S 8,219 D $30.935 909,345,417 D
Common Stock 05/03/2007 S 5,400 D $30.934 909,340,017 D
Common Stock 05/03/2007 S 188,281 D $30.93 909,151,736 D
Common Stock 05/03/2007 S 11,500 D $30.925 909,140,236 D
Common Stock 05/03/2007 S 54,200 D $30.92 909,086,036 D
Common Stock 05/03/2007 S 2,299 D $30.915 909,083,737(1) D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. In addition, there are 425,066 shares owned by reporting person's spouse. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purposes.
Remarks:
* Duly authorized under Special Power of Attorney appointing Michael Larson attorney-in-fact, dated February 3, 2006, by and on behalf of William H. Gates III, filed as Exhibit 99.1 to Cascade Investment, L.L.C.'s Amendment No. 2 to Schedule 13G with respect to Arch Capital Group Ltd. on March 7, 2006, SEC File No. 005-45257, and incorporated by reference herein.
William H. Gates III By: /s/ Michael Larson*, Attorney-In-Fact 05/07/2007
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.