Windows 95 build 263

Windows 95 build 263 is a Beta 2 build of Windows 95, which was originally mislabeled as build 265 by the warez group that leaked it. It was later found and shared on 6 July 2019, with the files being provided by Dave Pennings.

New features

 * This build introduces the Musica sound scheme.
 * (seen in Setup) has been redesigned to have its appearance seen in the RTM.
 * The Windows Tour has been updated to no longer show a simulation of the Desktop Experience in the beginning. Instead, a short animated clip in 640x480 resolution showing a plane with a "Microsoft Windows 95" will be played until the main page "Welcome to the Windows Tutorial" has been reached. Just like Setup, it shows a border on higher resolutions.

Bugs and quirks
The "Configuring System" prompt in the second part of setup is blank, apart from the animated icon.