Evolution of Windows Startup and Shutdown Sounds

See the evolution of Windows through its sounds at startup and shutdown. Sit back and watch. Notes: - The Windows NT images up to NT 5.0/2000 build 1773 are not the actual boot screens, they are backgrounds titled: PRELIM.BMP for the first NT build, WINNT.BMP for NT builds up to 3.51, WINNT256.BMP for 3.51-2000 build 1773. - The year after the mentioned version/s are the years when it was developed until either its last Service Pack (SP) or OEM Service Release (OSR) - OEM-specific versions are not included (e.g. 1.xx by Tulip Computers), however, OSRs are included as they are not limited to one OEM. Also, most "Windows Startup and Shutdown Sounds" videos have some widespread inaccuracies especially with betas and also Windows 8 to 10. Why? • Windows did not have any sounds before Windows 3.0 MME • Windows NT 5.0/2000 Beta 1 and Beta 2 doesn&use the Windows 2000 beta 3 builds 1946 - 1969 startup as a shutdown, it uses the shutdown sound from NT 4.0. • Windows ME (before builds 2476), used Windows 98 sounds, not Windows 2000 builds 1983 - 2000.3 sounds. • No builds of Whistler ever used or even included the widespread startup and shutdown sound you have mostly heard. The fake startup sound was made using Windows 98&shutdown sound, but reversed, Windows 2000 build 1983 to build 2000.3&startup sound reversed, and the Next Level sound from Spring Weekend in the Microsoft Entertainment Pack, and the shutdown sound came from BeOS. Whistler uses Windows 2000 sounds up until...