Windows 10 build 21296.1000 (rs prerelease)

Windows 10 build 21296.1000 (rs_prerelease) is the fourth Insider Preview build of Cobalt, the 21H2 development semester of Windows as a service. This build was released on 21 January 2021 to all Windows Insiders on the Dev Channel.

Changes

 * The converged clipboard history, first announced in Iron build 20206, now supports pinning, unpinning, deleting, and syncing items individually.
 * Storage Spaces management from Settings → System → Storage, first introduced in build 21286, is now available for all Insiders on the Dev Channel.
 * The issue where games such as State of Decay 2 or Assassin’s Creed may hang or crash when launching has been fixed. Updates are required for these games to apply them.

News and interests

 * The taskbar button's layout is reset to "Show icon and text" after upgrading to this build.
 * Sometimes the flyout cannot be dismissed with pen.
 * The taskbar button can show stale information each time users log into their account.
 * The flyout shows content in a single column before quickly switching to double column.
 * The taskbar button's text can look pixelated in high resolution screens.
 * The taskbar context menu and the flyout overlap.
 * In certain circumstances, the flyout uses 100% of CPU when first launched.
 * Attempting to share content dismisses the flyout.

General

 * The update process to this build has a chance of hanging for extended periods of time.
 * Call of Duty: Modern Warfare and Black Ops Cold War may not launch starting with this build.
 * Some 32-bit systems may lose network connection after upgrading to this build.
 * The reliability of the Start menu and other modern apps may be affected in this build.
 * Miracast users may experience very low frame rates in this build.
 * Live preview doesn't work for pinned site tabs on some machines, a gray window is seen instead of the intended content.
 * Aero Shake is disabled in this build. To enable it again, merge the following to the registry and restart :