Windows 10 Build 10074 Sounds - Fixed

Windows 10 Build 10074, released in April 2015, marked a major turning point for the OS's audio identity by introducing the "Insider Preview" name and a completely refreshed sound scheme. Key Audio Changes

When Microsoft released Windows 10 Insider Preview Build 10074 on April 29, 2015, it marked a significant shift in the operating system's identity. Moving away from the "Technical Preview" label, this build introduced a more polished UI, the return of Aero-like transparency, and—most notably for audiophiles—a completely overhauled set of system sounds. windows 10 build 10074 sounds

• Refined system volume UI: the volume flyout and system tray look cleaner and match the early Windows 10 visual style.
• Improved consistency between apps: apps generally respect system volume changes and per-app volume settings in Volume Mixer behave reliably.
• Better handling of default device switching: when plugging/unplugging headphones or HDMI, device switching is mostly seamless with fewer stuck states than earlier preview builds.
• Cortana/audio integration: voice activation and microphone access for Cortana work more consistently; mic permissions are easier to manage.
• Notification sounds and system cues: some system sounds were updated or slightly rebalanced to fit the new UI’s tone.

UI Polish: The build introduced new 3D Live Tile animations and updated icons for the Control Panel and File Explorer. Windows 10 Build 10074, released in April 2015,

A "Glassier" Feel: The notification and calendar sounds had a distinct digital chime. Refined system volume UI: the volume flyout and

While many of these sounds were refined in later RTM (Release to Manufacturing) versions, Build 10074 served as their public debut. SoundCloud How to Access and Customize Sounds