Ahem. -cough-. Brace yourself for a childhood ruiner:
The Longhorn startup sound actually is the Windows 7's startup sound.
Don't believe me? There are videos on Youtube that aren't made on April Fools that illustrate that. Also the Whistler startup sound isn't how you imagined.
Wish you can add sounds to Imgflip so I can explain what people think Whistler starts up like :)
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