Microsoft (MSFT) 8-K Regulation FD Disclosure

Exhibit 99.1

Microsoft Corporation

Adjusted Segment Product Revenue/Operating Income (Loss) tables for the four quarters and fiscal year ended June 30, 2005, and the first three quarters of fiscal year 2006

(In millions)

Previously Reported under Fiscal Year 2006 Operating Segments (unaudited)

	For the three months ended															For the three months ended									For the nine months ended March 31, 2006
Revenue	September 30, 2004			December 31, 2004			March 31, 2005			June 30, 2005			Fiscal Year 2005			September 30, 2005			December 31, 2005			March 31, 2006
Client	$	2,980		$	3,193		$	2,964		$	3,014		$	12,151		$	3,187		$	3,459		$	3,187		$	9,833
Server & Tools		2,241			2,542			2,459			2,696			9,938			2,531			2,907			2,845			8,283
IW		2,595			2,825			2,805			2,944			11,169			2,698			2,979			2,946			8,623
MBS		156			207			179			242			784			181			242			216			639
MSN		559			606			581			598			2,344			564			593			561			1,718
MED		49			72			61			80			262			74			101			89			264
H&E		609			1,373			571			587			3,140			506			1,556			1,056			3,118
Consolidated	$	9,189		$	10,818		$	9,620		$	10,161		$	39,788		$	9,741		$	11,837		$	10,900		$	32,478
	For the three months ended															For the three months ended									For the nine months ended March 31, 2006
Operating Income/(Loss)	September 30, 2004			December 31, 2004			March 31, 2005			June 30, 2005			Fiscal Year 2005			September 30, 2005			December 31, 2005			March 31, 2006
Client	$	2,404		$	2,531		$	2,346		$	2,183		$	9,464		$	2,577		$	2,644		$	2,478		$	7,699
Server & Tools		707			948			822			814			3,291			907			1,099			1,068			3,074
IW		1,921			2,064			2,029			2,011			8,025			1,946			2,102			2,087			6,135
MBS		(31	)		(17	)		(39	)		(84	)		(171	)		(11	)		10			(13	)		(14	)
MSN		79			130			102			101			412			81			58			(26	)		113
MED		(29	)		(12	)		(9	)		(15	)		(65	)		(2	)		20			(14	)		4
H&E		(161	)		52			(175	)		(201	)		(485	)		(162	)		(298	)		(388	)		(848	)
Other		(1,396	)		(947	)		(1,747	)		(1,820	)		(5,910	)		(1,290	)		(978	)		(1,304	)		(3,572	)
Consolidated	$	3,494		$	4,749		$	3,329		$	2,989		$	14,561		$	4,046		$	4,657		$	3,888		$	12,591
Unaudited Pro Forma Results for Fiscal Year 2007 Operational Changes (a)
	For the three months ended															For the three months ended									For the nine months ended March 31, 2006
Revenue	September 30, 2004			December 31, 2004			March 31, 2005			June 30, 2005			Fiscal Year 2005			September 30, 2005			December 31, 2005			March 31, 2006
Segments
Client	$	2,980		$	3,193		$	2,964		$	3,014		$	12,151		$	3,187		$	3,459		$	3,187		$	9,833
Server and Tools		1,906			2,161			2,058			2,245			8,370			2,127			2,438			2,398			6,963
Online Services Group		559			606			581			598			2,344			564			594			561			1,719
Microsoft Business Division		3,086			3,413			3,384			3,637			13,520			3,283			3,689			3,608			10,580
Entertainment and Devices		658			1,445			633			667			3,403			580			1,657			1,146			3,383
Total revenue	$	9,189		$	10,818		$	9,620		$	10,161		$	39,788		$	9,741		$	11,837		$	10,900		$	32,478
	For the three months ended															For the three months ended									For the nine months ended March 31, 2006
Operating Income / (Loss)	September 30, 2004			December 31, 2004			March 31, 2005			June 30, 2005			Fiscal Year 2005			September 30, 2005			December 31, 2005			March 31, 2006
Segments
Client	$	2,387		$	2,513		$	2,331		$	2,172		$	9,403		$	2,569		$	2,638		$	2,471		$	7,678
Server and Tools		455			660			515			479			2,109			606			762			746			2,114
Online Services Group		79			130			101			101			411			81			58			(26	)		113
Microsoft Business Division		2,160			2,355			2,316			2,285			9,116			2,251			2,466			2,414			7,131
Entertainment and Devices		(202	)		28			(198	)		(235	)		(607	)		(182	)		(296	)		(422	)		(900	)
Corporate-Level Activity		(1,385	)		(937	)		(1,736	)		(1,813	)		(5,871	)		(1,279	)		(971	)		(1,295	)		(3,545	)
Total operating income	$	3,494		$	4,749		$	3,329		$	2,989		$	14,561		$	4,046		$	4,657		$	3,888		$	12,591

(a) All pro forma information presented in this section is preliminary based upon management’s present view and is unaudited