KB5083806: Cumulative update for Windows 11, version 26H1, April 2026. Narrator adds Copilot image descriptions; Remote Desktop warning fixed

For: Devices with a domain-joined work or school account

• The Other users dialog boxes have a refreshed design that supports dark mode.¹
  The dialog box option's visibility depends on whether the device has a domain-joined work or school account.

• The About page has a clearer layout for device specifications and easier navigation to related settings, including Storage.²
  The page is at Settings > About.
• The device information card on the Settings Home page makes key specifications easier to scan and understand.³
  The card's information is more consistent with Settings > System > About. Availability varies by device and market.
• Opening Home in Settings is more reliable and performs better.⁴
• Required updates download more reliably when Settings prompts you to get them.⁵
  This applies to the prompt in Settings > System > Advanced.

• Files downloaded from the internet can be unblocked more reliably so they can be previewed in File Explorer.⁶

• Monitors can report refresh rates above 1000 Hz.⁷
• A USB4-connected monitor lets the USB controller use its lowest power level while the PC sleeps, helping save battery life.⁸
  This applies when using a native USB4 monitor connection.
• Auto rotation works more reliably after the PC resumes from sleep.⁹
• HDR works more reliably with displays that have non-compliant DisplayID 2.0 blocks.¹⁰
• Monitors with DisplayID report a more accurate size.¹¹
  This applies when using the WMI monitor APIs.

For: Devices connecting to printers

• Printer connections can use updated support for older Windows versions.¹²
  The downlevel baseline is Windows 10, version 1607, and Windows Server 2016 (Build 14393).

• Taskbar components load more reliably in safe mode.¹³

For: People using Voice Access in English

• Voice Access detects and writes numbers more accurately in English.¹⁴

For: Devices using a Start menu layout through Group Policy

• Start menu layouts applied through Group Policy are more reliable when the layout includes desktop app links.¹⁵
  The issue concerns desktopAppLink in the JSON layout.

• A Remote Desktop configuration command now recognizes the DisableSeamlessLanguageBar setting.¹⁶
  Set-RDSessionCollectionConfiguration now recognizes DisableSeamlessLanguageBar.

• Short MIDI messages are handled better when an app starts without providing long message buffers.¹⁷

For: Certain devices using Windows Hello Fingerprint

• Fingerprint sign-in is more reliable on certain devices.¹⁸

For: Copilot+ PCs

• The update includes updated Image Search, Content Extraction, Semantic Analysis, and Settings Model components.¹⁹
  These AI component updates apply only to Copilot+ PCs and do not install on other Windows PCs or Windows Server.

For: Windows 11 devices; on-device descriptions on Copilot+ PCs

• Narrator can use Copilot to describe a focused image or the full screen. Copilot+ PCs also get instant, on-device image descriptions.²⁰
  Use Narrator key + Ctrl + D for the focused image or Narrator key + Ctrl + S for the full screen. The image is shared only after you choose to describe it.

• You can turn Smart App Control on or off without reinstalling Windows.²¹
  Change it in Settings > Windows Security > App & Browser Control > Smart App Control settings. When enabled, it helps block untrusted or potentially harmful apps.

• Microsoft 365 Family subscribers can upgrade to a different Microsoft 365 plan from Settings > Accounts.²²
  Turn off Suggested content in Settings to remove the upgrade option.

For: Devices with a pen

• Pen settings include a Same as Copilot key option for the pen tail button.²³
  The option makes the pen tail button open the same app as the Copilot key.

• You can use voice typing while renaming a file in File Explorer.²⁴
  Start voice typing with Windows logo key + H.
• You can sort a folder's permission entries by principal in Advanced Security Settings.²⁵

• An extraneous error message that might unexpectedly appear when you run System File Checker is removed.²⁶
  This applies to sfc /scannow.

• An Active Directory database upgraded with ntdsutil.exe and 8KB database pages no longer becomes unmountable.²⁷
  The affected database is NTDS.dit.

For: Devices using multiple monitors with different scaling

• The Remote Desktop Connection security warning no longer renders incorrectly on multi-monitor setups with different scaling. This could occur after the April 2026 security update.²⁸