Microsoft continues to enhance the Windows 11 experience with its latest Insider Preview Build 27891, now available on the Canary Channel. This release packs several under-the-hood improvements, bug fixes, and even a few hidden features that give us a glimpse of what’s coming to Windows 11 later this year.
In this blog post, we’ll break down every new feature, improvement, and fix in Build 27891, along with known issues you should be aware of. Whether you’re a Windows enthusiast or just someone curious about future updates, this guide gives you the full picture.
🔋 Hidden Feature: New Colored Battery Icon on Lock Screen
One of the most intriguing updates in this build is an unofficially announced feature — a new battery icon with color and percentage display on the lock screen. This hidden tweak was discovered by a Windows enthusiast on X (formerly Twitter).
🔍 What It Does:
- Displays the battery percentage directly on the lock screen.
- The icon changes color based on the battery level.
🛑 Important Note:
- Microsoft hasn’t officially introduced this feature, and it may be buggy.
- In some cases, the icon reverts to the old version or fails to display correctly.
- It’s likely still in testing and may fully launch in an upcoming official release.
💥 Major Deprecation: Windows PowerShell 2.0 Removed
Microsoft has officially deprecated and removed Windows PowerShell 2.0 from the latest Canary builds.
📝 Why It Matters:
- PowerShell 2.0 is outdated and poses security risks.
- Users are advised to move to PowerShell 7+, which is more modern and secure.
➡️ Download PowerShell (Latest)
🛍️ Microsoft Store Update: Install Direct from Homepage
The Microsoft Store gets a usability upgrade in this build.
✅ New Capability:
- You can now install or purchase apps directly from the featured section on the homepage.
- A clear install or buy button is available for quick access.
To get this update:
- Open Microsoft Store.
- Go to Library > Get updates to force the latest version.
🔧 Fixes Included in Build 27891
Here are the key bugs that Microsoft has addressed in this Canary build:
⚙️ System & UI Fixes
- Reset this PC (under Settings > System > Recovery) is now working again.
- Acrylic effects on the taskbar are restored after being broken in earlier builds.
- Fixes a bug where Windows Updates stalled at 2% during download.
- Corrected display issues for non-English characters (Arabic, Vietnamese, etc.) across UI areas like Task Manager.
📁 File Explorer Fix
- Dropdown path navigation (ellipsis menu) in the address bar is no longer cut off or inaccessible.
🎤 Sound & Bluetooth Settings Fixes
- Fixed crashes when opening microphone properties in Settings.
- Fixed Bluetooth-related crashes in Settings or Quick Settings.
🪟 Windowing & Task Manager
- Window minimize animation now plays correctly.
- CPU graphs in Task Manager now use updated utility calculations.
- Fixed Task Manager showing System Idle Process at 0% constantly.
🔈 Audio
- Fixed an issue where system alert sounds wouldn’t play, even though general audio worked.
🖋️ Fonts & Typing
- Fixed font rendering issues in certain apps.
- Resolved bugs in typing Hebrew and Thai, where punctuation and spaces showed incorrect characters.
🎵 Media Player & Printing
- Playback controls in the Media Player are now visually correct.
- Fixed print previews appearing blurry in earlier builds.
🔍 LDAP Query Fix
- Fixed an issue where LDAP queries from apps were slow after previous updates.
⚠️ Known Issues in Build 27891
Even though many bugs have been fixed, a couple of new issues are still being worked on:
1. Settings Crash – Power & Battery
- May crash when accessing Settings > System > Power & Battery, especially on laptops.
2. Remote Desktop – ARM64 PCs
- Using Remote Desktop on ARM64 devices could cause extreme graphical distortion and rendering problems.
❓ Frequently Asked Questions
Q: Is this Canary Build stable enough to use daily?
A: While it includes many fixes, Canary builds are early-stage previews. Expect instability, bugs, and unfinished features.
Q: Can I enable the new battery icon manually?
A: Not officially. Advanced users can try enabling it via feature flags, but it’s buggy and not recommended for everyday use.
Q: Will these updates roll out to all users?
A: Most likely, yes. Features from Insider builds usually make it to stable Windows 11 releases in a few months — possibly in the May or Fall 2025 update.
📝 Final Thoughts
Windows 11 Canary Build 27891 is shaping up to be a feature-rich update with several important fixes and UI improvements. The hidden battery icon feature is a small but welcome touch — signaling Microsoft’s intention to make the OS more user-friendly and informative.
While some bugs persist, especially with Remote Desktop and power settings, Microsoft is actively listening and iterating with each build.
If you’re on the Insider path, make sure to keep your system updated and share feedback via the Feedback Hub. Every small tweak helps polish the future of Windows 11.
🧩 Tags:
windows 11 canary build, build 27891, windows insider preview, windows 11 battery icon, windows powershell deprecated, microsoft store update, windows 11 bug fixes, windows 11 preview update, task manager update, settings crash, file explorer fix, windows 11 UI updates
📢 Hashtags:
#Windows11 #CanaryBuild #InsiderPreview #Build27891 #MicrosoftUpdates #TaskManager #FileExplorer #WindowsSettings #TechNews #PowerShell #WindowsFixes
🛡️ Disclaimer:
This article is based on information from pre-release software (Windows Insider Canary Channel). Features may change or be removed in the final version. Always back up your data before trying preview builds.
💡 Want a reliable laptop for Windows Insider testing? Laptops on Amazon
Let us know what you think of this build! Are you excited about the battery icon tweak? Have you faced any of the issues mentioned? Drop a comment below or tag us on social media.
