Windows 11 Build 23615 (Dev) introduced USB 80Gbps and Copilot autostart

A new preview release is now available to insiders in the Dev channel. Windows 11 Build 23615 brings with it blazing fast USB 80Gbps speeds, and also adds an option to start Copilot automatically when you sign in to the OS. It also includes the option to share a link from the browser to the WhatsApp, Gmail, and other popular web platforms. Finally, there are some fixes and improvements.

What's new in Windows 11 Build 23615 (Dev)

USB 80Gbps

This newest build adds support for the latest USB standard, USB 80Gbps. It will initially available on specific devices powered by the Intel Core 14th Gen HX-series mobile processors, like the cutting-edge Razer Blade 18.

Bringing forth the first significant update to the USB4 standard, this advancement doubles the performance to a whopping 80Gbps from the previous 40Gbps. With this upgrade, users can expect enhanced performance in high-performance displays, storage, and connectivity, ushering in the next generation of technology.

Moreover, this USB 80Gbps support remains fully compatible with older USB and Thunderbolt peripherals, allowing seamless integration with a wide range of devices. It effortlessly integrates with all other USB Type-C features, providing a comprehensive and versatile experience.

Copilot autostart

This is something we have learned about earlier. Microsoft has finally announced the new option that allows you to start Windows Copilot automatically. It will only work on widescreen devices, and must be manually enabled in Settings > Personalization > Copilot. Microsoft is rolling out it to a small group of insiders to collect feedback.

Windows Share

The Windows share window has been updated to include direct sharing of URLs to popular platforms such as WhatsApp, Gmail, X (formerly Twitter), Facebook, and LinkedIn. In Microsoft Edge, you can access this feature by clicking on the share icon located at the top right of the toolbar and selecting the desired sharing option from the Windows share window.


Task Manager: Fixed an issue that affected the stability of the Task Manager for some Insiders.
Sharing: Fixed an issue that was affecting the stability of the Share window for some Insiders.

ℹ️ Note. Some of the fixes listed above may be included in cumulative updates for release versions of Windows 11.

Known Issues

Copilot for Windows

When you first launch or after updating Copilot, when using Voice Access, you must use the Show grid command to then move to the Ask me anything field.


  • Notifications from the Microsoft Start ribbon still appear on the taskbar even if the ribbon is disabled.
  • Navigation using the keyboard from widget settings pages to the main settings section does not work.
  • Some pages use incorrect spacing and fonts.


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Author: Sergey Tkachenko

Sergey Tkachenko is a software developer who started Winaero back in 2011. On this blog, Sergey is writing about everything connected to Microsoft, Windows and popular software. Follow him on Telegram, Twitter, and YouTube.

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