Обычные Windows NT:
Windows 11: https://www.microsoft.com/en-us/software-download/windows11
Windows 10: https://www.microsoft.com/en-us/software-download/windows10
Windows 8.1: https://www.microsoft.com/en-us/software-download/windows8iso
Windows 7 with Service Pack 1 EN: https://rutracker.org/forum/viewtopic.php?t=5121311
Windows 7 with Service Pack 1 RU: https://rutracker.org/forum/viewtopic.php?t=4529698
Windows Vista with Service Pack 2 RU: https://rutracker.org/forum/viewtopic.php?t=3096576
Windows Vista with Service Pack 2 EN: https://rutracker.org/forum/viewtopic.php?t=3543471
Windows XP Professional SP3 VL: https://rutracker.org/forum/viewtopic.php?t=4461985
Windows XP old-dos: http://old-dos.ru/index.php?do=show&id=4404&page=files
Windows XP x64 old-dos: http://old-dos.ru/index.php?page=files&mode=files&do=show&id=5352
Windows XP x64: https://archive.org/details/en_win_xp_pro_x64_with_sp2_vl_x13-41611_202105
Windows 2000 WinWorldPC: https://winworldpc.com/product/windows-nt-2000/final
Windows 2000 old-dos: http://old-dos.ru/index.php?do=show&id=3019&page=files 

Embedded, Enterprise, LTSC, Server, редкие редации:
Windows 11 Enterprise Evalution: https://www.microsoft.com/ru-ru/evalcenter/download-windows-11-enterprise
Windows 10 Enterprise/LTSC Evalution: https://www.microsoft.com/ru-ru/evalcenter/download-windows-10-enterprise
Windows 10 Enterprise LTSC 64bit: https://archive.org/details/en-us_windows_10_enterprise_ltsc_2021_x64_dvd_d289cf96_202112
Windows 10 Enterprise LTSC 32bit: https://archive.org/details/en-us_windows_10_enterprise_ltsc_2021_x86_dvd_9f4aa95f
Windows Embedded 8.1 Industry Pro: https://www.microsoft.com/ru-ru/download/details.aspx?id=40745
Windows Embedded 8.1 Industry Enterprise with Update 3 x64: https://archive.org/details/en_windows_embedded_8.1_industry_enterprise_with_update_x64_dvd_6052160
Windows Embedded 8.1 Industry Enterprise with Update 3 x86: https://archive.org/details/en_windows_embedded_8.1_industry_enterprise_with_update_x86_dvd_6052252
Windows Embedded 8.1 Industry Pro with Update 3 x64: https://archive.org/details/en_windows_embedded_8.1_industry_pro_with_update_x64_dvd_6052086_202107
Windows Embedded 8.1 Industry Pro with Update 3 x86: https://archive.org/details/en_windows_embedded_8.1_industry_pro_with_update_x86_dvd_6052123
Windows 8.0 Enterprise: https://rutracker.org/forum/viewtopic.php?t=4469417
Windows 7 (без Service Pack 1): https://rutracker.org/forum/viewtopic.php?t=5093115
Windows Thin PC: https://archive.org/details/en_windows_thin_pc_x86_697681 
Windows Embedded Standard 7 SP1 x64 Runtime: https://archive.org/details/en_windows_embedded_standard_7_sp1_runtime_x64_dvd_651894
Windows Embedded Standard 7 SP1 x86 Runtime: https://archive.org/details/en_windows_embedded_standard_7_sp1_runtime_x86_dvd_651894
Windows Embedded Standard 7 Service Pack 1 for Multilingual User Interface Pack x64: https://archive.org/details/en_windows_embedded_standard_7_sp1_for_mui_x64_dvd_669676
Windows Embedded Standard 7 Service Pack 1 for Multilingual User Interface Pack x86: https://archive.org/details/en_windows_embedded_standard_7_sp1_for_mui_x86_dvd_669659

Windows 9x:
Windows ME WinWorldPC: https://winworldpc.com/product/windows-me/final
Windows ME old-dos: http://old-dos.ru/index.php?page=files&mode=files&do=show&id=1429
Windows 98 WinWorldPC: https://winworldpc.com/product/windows-98/98-second-edition
Windows 98 old-dos: http://old-dos.ru/files/file_793.html
Windows 95 WinWorldPC: https://winworldpc.com/product/windows-95/osr-2
Windows 95 old-dos: http://old-dos.ru/files/file_76.html
Windows 95 OSR2 old-dos: http://old-dos.ru/index.php?page=files&mode=files&do=show&id=3296
Windows 3x, 2x, 1.0x:
Windows 3.0 / 3.1: https://winworldpc.com/product/windows-3/31
Windows 2x: https://winworldpc.com/product/windows-20/20
Windows 1.0x: https://winworldpc.com/product/windows-10/101

MS-DOS:
7.x: https://winworldpc.com/product/ms-dos/7x
6.22: https://winworldpc.com/product/ms-dos/622
6.21: https://winworldpc.com/product/ms-dos/621
6.20: https://winworldpc.com/product/ms-dos/620
6.0: https://winworldpc.com/product/ms-dos/6x
5.0: https://winworldpc.com/product/ms-dos/50
4.0x: https://winworldpc.com/product/ms-dos/4x
3.31: https://winworldpc.com/product/ms-dos/331
3.30: https://winworldpc.com/product/ms-dos/3x
3.21: https://winworldpc.com/product/ms-dos/321
3.20: https://winworldpc.com/product/ms-dos/320
3.10: https://winworldpc.com/product/ms-dos/310
3.00: https://winworldpc.com/product/ms-dos/30
2.x: https://winworldpc.com/product/ms-dos/2x
1.x: https://winworldpc.com/product/ms-dos/1x