Here is a list of every Windows OS ever made, along with a download link if available
<b>Microsoft Interface Manager Internal Test Release 3</b> (1985) - (Download Not Available)
<b>Microsoft Windows Beta Release</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.01</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.02</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.03</b> (1986) - (Download Not Available)
<b>Microsoft Windows Version 1.04</b> (1987) - (Download Not Available)
<b>Microsoft Windows Version 2.03</b> (1987) - (Download Not Available)
<b>Microsoft Windows/386 Version 2.1</b> (1988) - (Download Not Available)
<b>Microsoft Windows/286 Version 2.11</b> (1989) - (Download Not Available)
<b>Microsoft Windows/386 Version 2.11</b> (1989) - (Download Not Available)
<b>Microsoft Windows Version 3.0</b> (1990) - (Download Not Available)
<b>Microsoft Windows Graphical Environment With Multimedia Extensions 1.0</b> (1991) - (Download Not Available)
<b>Microsoft Windows 386 Enhanced Mode Version 3.20</b> (1991) - (Download Not Available)
<b>Microsoft Windows Version 3.1</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.1 Final Beta Release</b> (1992) - (Download Not Available)
<b>Microsoft Windows For Pen Computing Version 1.0</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.1 For Workgroups</b> (1992) - (Download Not Available)
<b>Microsoft Windows NT Version 3.10 (Build 404)</b> (1992) - (Download Not Available)
<b>Microsoft Windows NT Version 2.1 Preliminary Release For Developers</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.11 For Workgroups</b> (1993) - (Download Not Available)
<b>Microsoft Windows Version Cougar</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.1 - Beta March 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows 93 - First Beta Release June 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.1</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Advanced Server Version 3.1</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.11</b> (1993) - (Download Not Available)
<b>Microsoft Windows Chicago Preliminary Release - November 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows Version 3.2 (Simplifed Chinese)</b> (1994) - (Download Not Available)
<b>Microsoft Windows Chicago Preliminary Release - May 1994</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - September 1994 Beta</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - Deutsche Beta Version</b> (1994) - (Download Not Available
<b>Microsoft Windows 95 - Beta 2 October 1994 Beta</b> (1994) - (Download Not Available)
<b>Microsoft Interface Manager Internal Test Release 3</b> (1985) - (Download Not Available)
<b>Microsoft Windows Beta Release</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.01</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.02</b> (1985) - (Download Not Available)
<b>Microsoft Windows Version 1.03</b> (1986) - (Download Not Available)
<b>Microsoft Windows Version 1.04</b> (1987) - (Download Not Available)
<b>Microsoft Windows Version 2.03</b> (1987) - (Download Not Available)
<b>Microsoft Windows/386 Version 2.1</b> (1988) - (Download Not Available)
<b>Microsoft Windows/286 Version 2.11</b> (1989) - (Download Not Available)
<b>Microsoft Windows/386 Version 2.11</b> (1989) - (Download Not Available)
<b>Microsoft Windows Version 3.0</b> (1990) - (Download Not Available)
<b>Microsoft Windows Graphical Environment With Multimedia Extensions 1.0</b> (1991) - (Download Not Available)
<b>Microsoft Windows 386 Enhanced Mode Version 3.20</b> (1991) - (Download Not Available)
<b>Microsoft Windows Version 3.1</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.1 Final Beta Release</b> (1992) - (Download Not Available)
<b>Microsoft Windows For Pen Computing Version 1.0</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.1 For Workgroups</b> (1992) - (Download Not Available)
<b>Microsoft Windows NT Version 3.10 (Build 404)</b> (1992) - (Download Not Available)
<b>Microsoft Windows NT Version 2.1 Preliminary Release For Developers</b> (1992) - (Download Not Available)
<b>Microsoft Windows Version 3.11 For Workgroups</b> (1993) - (Download Not Available)
<b>Microsoft Windows Version Cougar</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.1 - Beta March 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows 93 - First Beta Release June 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.1</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Advanced Server Version 3.1</b> (1993) - (Download Not Available)
<b>Microsoft Windows NT Version 3.11</b> (1993) - (Download Not Available)
<b>Microsoft Windows Chicago Preliminary Release - November 1993</b> (1993) - (Download Not Available)
<b>Microsoft Windows Version 3.2 (Simplifed Chinese)</b> (1994) - (Download Not Available)
<b>Microsoft Windows Chicago Preliminary Release - May 1994</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - September 1994 Beta</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - Deutsche Beta Version</b> (1994) - (Download Not Available
<b>Microsoft Windows 95 - Beta 2 October 1994 Beta</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Version 3.5 Beta</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Server</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 3.5</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Server Version 3.5</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - Test Release January 1995</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - Final Beta Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 3.51</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Server Version 3.51</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - May 1995 Test Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - June 1995 Test Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 Microsoft Plus!</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 Microsoft Internet Explorer</b> (1995) - (Download Not Available)
<b>Microsoft Windows 96</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Server Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0 With Microsoft Internet Explorer</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Server Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Server (Enterprise Edition) Version 4.0</b> (1997) - (Download Not Available)
<b>Microsoft Windows NT Server</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 3.5</b> (1994) - (Download Not Available)
<b>Microsoft Windows NT Server Version 3.5</b> (1994) - (Download Not Available)
<b>Microsoft Windows 95 - Test Release January 1995</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - Final Beta Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 3.51</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Server Version 3.51</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - May 1995 Test Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 - June 1995 Test Release</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 Microsoft Plus!</b> (1995) - (Download Not Available)
<b>Microsoft Windows 95 Microsoft Internet Explorer</b> (1995) - (Download Not Available)
<b>Microsoft Windows 96</b> (1995) - (Download Not Available)
<b>Microsoft Windows NT Server Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0 With Microsoft Internet Explorer</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Server Version 4.0</b> (1996) - (Download Not Available)
<b>Microsoft Windows NT Server (Enterprise Edition) Version 4.0</b> (1997) - (Download Not Available)
<b>Microsoft Windows-based Terminal Server 4.0 Beta 1</b> (1997) - (Download Not Available)
<b>Microsoft Windows Terminal Server 4.0 Beta 2</b> (1997) - (Download Not Available)
<b>Microsoft Windows NT Server 4.0 Terminal Server Edition</b> (1997) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0 With Microsoft Internet Explorer</b> (1997) - (Download Not Available)
<b>Microsoft Windows Memphis Developer Release</b> (1997) - (Download Not Available)
<b>Microsoft Windows Memphis Beta 1</b> (1997) - (Download Not Available)
<b>Microsoft Windows 98 Beta 2</b> (1997) - (Download Not Available)
<b>Microsoft Windows 98 Beta 3 Microsoft Internet Explorer</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98 Plus!</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98 Second Edition</b> (1998) - (Download Not Available)
<b>Microsoft Windows NT Workstation 5.0 Beta 1 Evalution Copy</b> (1998) - (Download Not Available)
<b>Microsoft Windows NT Server 5.0 Beta 1</b> (1999) - (Download Not Available)
<b>Microsoft Windows NT Workstation 5.0</b> (1999) - (Download Not Available)
<b>Microsoft Windows NT Server 5.0</b> (1999) - (Download Not Available)
<b>Microsoft Windows 2000</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Server</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Professional</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Server Family</b> (2000) - (Download Not Available)
<b>Microsoft Windows Neptune (under construction)</b> (2000) - (Download Not Available)
<b>Microsoft Windows Neptune</b> (2000) - (Download Not Available)
<b>Microsoft Windows Odyssey</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium - Developer Release</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium - Beta One</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium Edition</b> (2000) - (Download Not Available)
<b>Microsoft Whistler</b> (2001) - (Download Not Available)
<b>Microsoft Whistler Server Family</b> (2001) - (Download Not Available)
<b>Microsoft Codename Whistler</b> (2001) - (Download Not Available)
<b>Microsoft Trident - Under Construction</b> (2001) - (Download Not Available)
<b>Microsoft Whistler Beta Two</b> (2001) - (Download Not Available)
<b>Microsoft Windows Terminal Server 4.0 Beta 2</b> (1997) - (Download Not Available)
<b>Microsoft Windows NT Server 4.0 Terminal Server Edition</b> (1997) - (Download Not Available)
<b>Microsoft Windows NT Workstation Version 4.0 With Microsoft Internet Explorer</b> (1997) - (Download Not Available)
<b>Microsoft Windows Memphis Developer Release</b> (1997) - (Download Not Available)
<b>Microsoft Windows Memphis Beta 1</b> (1997) - (Download Not Available)
<b>Microsoft Windows 98 Beta 2</b> (1997) - (Download Not Available)
<b>Microsoft Windows 98 Beta 3 Microsoft Internet Explorer</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98 Plus!</b> (1998) - (Download Not Available)
<b>Microsoft Windows 98 Second Edition</b> (1998) - (Download Not Available)
<b>Microsoft Windows NT Workstation 5.0 Beta 1 Evalution Copy</b> (1998) - (Download Not Available)
<b>Microsoft Windows NT Server 5.0 Beta 1</b> (1999) - (Download Not Available)
<b>Microsoft Windows NT Workstation 5.0</b> (1999) - (Download Not Available)
<b>Microsoft Windows NT Server 5.0</b> (1999) - (Download Not Available)
<b>Microsoft Windows 2000</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Server</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Professional</b> (2000) - (Download Not Available)
<b>Microsoft Windows 2000 Server Family</b> (2000) - (Download Not Available)
<b>Microsoft Windows Neptune (under construction)</b> (2000) - (Download Not Available)
<b>Microsoft Windows Neptune</b> (2000) - (Download Not Available)
<b>Microsoft Windows Odyssey</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium - Developer Release</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium - Beta One</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium</b> (2000) - (Download Not Available)
<b>Microsoft Windows Millennium Edition</b> (2000) - (Download Not Available)
<b>Microsoft Whistler</b> (2001) - (Download Not Available)
<b>Microsoft Whistler Server Family</b> (2001) - (Download Not Available)
<b>Microsoft Codename Whistler</b> (2001) - (Download Not Available)
<b>Microsoft Trident - Under Construction</b> (2001) - (Download Not Available)
<b>Microsoft Whistler Beta Two</b> (2001) - (Download Not Available)
<b>Microsoft Windows 94 (Chinese Pirate)</b> (2001) - (Download Not Available)
<b>Microsoft Windows.net</b> (2001) - (Download Not Available)
<b>Microsoft Windows.net Server Family</b> (2001) - (Download Not Available)
<b>Microsoft Windows Advanced Server - Limited Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows Advanced Server</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Professional</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Home Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Media Center Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Embedded</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP 64-Bit Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows Preinstallation Environment</b> (2001) - (Download Not Available)
<b>Microsoft Windows.net Server Family</b> (2001) - (Download Not Available)
<b>Microsoft Windows Advanced Server - Limited Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows Advanced Server</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Professional</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Home Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Media Center Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP Embedded</b> (2001) - (Download Not Available)
<b>Microsoft Windows XP 64-Bit Edition</b> (2001) - (Download Not Available)
<b>Microsoft Windows Preinstallation Environment</b> (2001) - (Download Not Available)
<b>Microsoft Windows 97 (Chinese Pirate)</b> (2002) - (Download Not Available)
<b>Microsoft Windows.NET Server 2003</b> (2003) - (Download Not Available)
<b>Microsoft Windows.NET Server 2003</b> (2003) - (Download Not Available)
<b>Microsoft Windows Server 2003</b> (2003) - (Download Not Available)
<b>Microsoft Windows Fundamentals for Legacy PCs</b> (2005) - (Download Not Available)
<b>Microsoft Windows Longhorn</b> (2005) - (Download Not Available)
<b>Microsoft Windows Code Name Longhorn</b> (2005) - (Download Not Available)
<b>Microsoft Windows Code Name Longhorn Beta Two</b> (2005) - (Download Not Available)
<b>Microsoft Windows Vista Beta</b> (2006) - (Download Not Available)
<b>Microsoft Windows Vista</b> (2006) - (Download Not Available)
<b>Microsoft Windows Home Server</b> (2007) - (Download Not Available)
<b>Microsoft Windows Server 2008 Enterprise</b> (2008) - (Download Not Available)
<b>Microsoft Windows 7</b> (2009) - (Download Not Available)
<b>Microsoft Windows Ultimate</b> (2009) - (Download Not Available)
<b>Microsoft Windows Server 7</b> (2009) - (Download Not Available)
<b>Microsoft Server 2008 R2</b> (2009) - (Download Not Available)
<b>Microsoft Windows 8</b> (2012) - (Download Not Available)
<b>Microsoft Windows Fundamentals for Legacy PCs</b> (2005) - (Download Not Available)
<b>Microsoft Windows Longhorn</b> (2005) - (Download Not Available)
<b>Microsoft Windows Code Name Longhorn</b> (2005) - (Download Not Available)
<b>Microsoft Windows Code Name Longhorn Beta Two</b> (2005) - (Download Not Available)
<b>Microsoft Windows Vista Beta</b> (2006) - (Download Not Available)
<b>Microsoft Windows Vista</b> (2006) - (Download Not Available)
<b>Microsoft Windows Home Server</b> (2007) - (Download Not Available)
<b>Microsoft Windows Server 2008 Enterprise</b> (2008) - (Download Not Available)
<b>Microsoft Windows 7</b> (2009) - (Download Not Available)
<b>Microsoft Windows Ultimate</b> (2009) - (Download Not Available)
<b>Microsoft Windows Server 7</b> (2009) - (Download Not Available)
<b>Microsoft Server 2008 R2</b> (2009) - (Download Not Available)
<b>Microsoft Windows 8</b> (2012) - (Download Not Available)
<b>Microsoft Windows Server 2012</b> (2012) - (Download Not Available)
