Key Points
- Microsoft released **Builds 26100.9539** and **26200.9539** for Windows 11 Release Preview (24H2/25H2).
- New **preview pane** tweaks in File Explorer and full **Emoji 17.0** support add immediate usability gains.
- Ideal for **Insider testers**, regular Windows 11 users, and anyone who works with files, emojis, or Bluetooth devices.
What is changing
File Explorer now lets you preview downloaded HTML files with a new **Preview anyway** button and auto‑preview PDFs. Cloud‑file thumbnails are more reliable, and the address bar no longer clears when you edit it nearby. The update also adds the full Emoji 17.0 set, including new icons like the distorted face, fight cloud, and hairy creature, plus refined designs for saluting face, goose, lotus, and kissing cat.
A fresh **Tips widget** appears on the Widgets board, giving short guidance about Windows features. You can also remap the Copilot key to act as Right Ctrl or Context Menu, which helps keep familiar keyboard shortcuts intact. These changes are rolled out in two phases: a gradual rollout that spreads features over time, and a normal rollout that reaches all eligible devices at once.
Why it matters
These builds are most relevant to **Insider testers** and power users who want early access to new tools and bug fixes. Regular Windows 11 users will notice smoother file handling, clearer emojis, and a helpful Tips widget that can reduce the need to hunt for settings.
The practical payoff is a **smoother workflow** – fewer unexpected preview warnings, reliable Bluetooth connections, and quicker access to useful tips. Impact is limited to those on Release Preview, but anyone upgrading later will inherit these stability and convenience improvements.
If you’ve tried any of these new features, share your thoughts or test results in the comments below.