Microsoft has pushed out cumulative updates KB5127648 and KB5126653 for Windows 11, addressing security vulnerabilities and bugs while introducing new capabilities across multiple OS versions including 26H2, 25H2, 24H2, and 23H2.

These mandatory patches constitute the tenth Patch Tuesday release of 2026 and contain security fixes for hundreds of vulnerabilities identified over recent months. Users can obtain the update through Start > Settings > Windows Update by selecting 'Check for Updates,' or download it directly from the Microsoft Update Catalog.

Since this update is based on 24H2, both 25H2 and 26H2 receive identical patches with no version-specific variations.

Feature additions and improvements in October 2026

File Explorer

  • The preview pane now includes a 'Preview anyway' button for HTML files downloaded from the web, while non-HTML files such as PDFs preview automatically
  • File Explorer Home now remembers whether sections are expanded or collapsed between sessions
  • Thumbnail preview reliability for cloud files has been enhanced in the Details pane, which has been reorganized for easier property review
  • An issue causing the address bar to clear when entering edit mode near the right edge has been resolved

Emoji

  • Support for Emoji 17.0 is now available, introducing new characters such as distorted face, fight cloud, and hairy creature, accessible via Windows + .
  • Design refinements have been applied to existing emoji including saluting face, face with peeking eye, goose, lotus, and kissing cat for improved cross-platform consistency

Widgets

A new Tips widget provides concise guidance on Windows features. Users can add it to their Widgets board through the Add widgets menu or to their lock screen via Settings > Personalization > Lock screen.

Personalization

  • The Personalization > Background page in Settings now has improved reliability
  • DIB image files are now supported as desktop backgrounds
  • Desktop slideshow transitions on newly created accounts are more reliable
  • Background preview resolution has been improved in the Personalization > Background interface
  • Settings now displays desktop background previews correctly for users with portrait mode monitors
  • Desktop wallpaper changes occurring in rapid succession are processed more reliably
  • Slideshow wallpapers now work across multiple desktops without automatically reverting to Picture mode

Bluetooth

Multiple enhancements target Bluetooth connectivity and audio stability:

  • During voice calls, the Windows shell volume flyout now displays when adjusting Bluetooth Classic Audio accessory volume via the accessory's controls
  • Connection state accuracy for disconnected accessories has been improved
  • The Bluetooth and devices Settings page is now more stable when managing devices
  • An issue where the Bluetooth radio could be disabled while the toggle showed as enabled has been fixed
  • Microphone compatibility with certain Bluetooth Classic audio accessories has been enhanced
  • A crash (error code 0x139) that could occur during Bluetooth audio streaming has been resolved
  • LE Audio accessory reliability and performance have been improved
  • Shared audio reliability has been strengthened

Accessibility

  • A new 'Open apps maximized' setting automatically maximizes application windows upon launch, benefiting screen reader users, magnification users, tablet mode users, and those preferring full-screen workspaces. It can be enabled at Settings > Accessibility > Visual effects
  • Keyboard, gamepad, and Narrator navigation of the Bluetooth quick settings page has been improved

Magnifier

The Magnifier taskbar has received a visual modernization with updated icons that align with Windows 11 design language and refined spacing and padding across the toolbar. Views, zoom controls, keyboard shortcuts, and Read Aloud functionality remain unchanged.

Settings

  • Reliability improvements have been made to the Printers & Scanners page under Settings > Bluetooth & Devices
  • The Installed apps section now displays version numbers at the top level for packaged apps, matching the display for other app types
  • The time picker control now reflects your preferred time format when switching between 12-hour and 24-hour modes, affecting features such as active hours and Night light scheduling
  • The 'Allow multiple apps to use camera at the same time' option in Settings > Bluetooth & Devices > Camera settings now persists correctly

Touchpad

New gesture controls for precision touchpads are now available in Settings > Bluetooth & devices > Touchpad:

  • Single-finger scrolling allows vertical scrolling with one finger starting from the left or right side of the touchpad
  • Automatic scrolling enables continuous scrolling by moving fingers near the touchpad edge without lifting them

Earlier gesture controls for scroll and zoom speed and accelerate scrolling were introduced in the July 2026 update (KB5101684).

Copilot key

A new Windows 11 setting enables remapping the Copilot key to function as Right Ctrl or Context Menu, preserving familiar keyboard shortcuts and accessibility workflows.

Camera roll

Camera roll backup functionality in Settings now helps eligible users protect photos through OneDrive. The feature can be enabled from the Settings Home or Accounts page, with setup completed on a mobile device using a QR code.

Fonts

  • The Ebrima font now supports Garay and Beria Erfe scripts, making it the first Microsoft font to support both. Garay was encoded in Unicode 16.0 and Beria Erfe in Unicode 17.0
  • Adlam glyph designs in Ebrima have been refined to align with current Unicode standards and improve consistency

Windows Recovery (WinRE)

A recovery remote management plug-in has been added to extend WinRE management capabilities for MDM providers.

Kiosk mode

  • The Windows + Tab keyboard shortcut is now disabled when using restricted UX kiosk mode
  • The Windows + A and Windows + C keyboard shortcuts are now disabled when using single-app kiosk mode

Windows Backup

PC-to-PC Migration is no longer available. This feature, which was introduced through phased rollout and allowed direct file and settings transfer from a previous PC during new Windows PC setup, has been discontinued. Users should use Windows Backup to back up and restore files, settings, and other supported items when transitioning to a new PC.

Power and battery

Display and performance have been improved in scenarios where a plugged-in laptop incorrectly detects a transition from AC power to battery power.

Known issues

Microsoft reports no awareness of new issues with this month's Patch Tuesday release. However, the company cautions that some PCs may experience audio issues following the update. The bug affects USB 1.0 audio devices and is not widespread.