Whilst I can’t vouch for whether this footage is truly from the Windows 95 launch, I can confirm that Gates, Ballmer, etc. should have been banned from going near a stage with musicĀ from 1995 onwards.
As a small “bonus”, here’s the original Windows 95 video guide – enjoy and cringe!
https://www.youtube.com/watch?v=kGYcNcFhctc&feature=youtu.be