Microsoft has rolled out its optional August preview update for Windows 11 24H2, KB5064081, bringing a mix of staged AI enhancements, long-awaited user interface tweaks, and critical diagnostic fixes to devices running build 26100.5074. The cumulative update is delivered as a combined servicing stack update (SSU) and latest cumulative update (LCU) package, a method that improves update engine reliability but complicates rollback scenarios. It will not install automatically on most systems—users must either enable the “Get the latest updates as soon as they’re available” toggle in Windows Update or manually download the preview from the Microsoft Update Catalog.
Rollout Model and Feature Gating
Microsoft continues its practice of shipping feature code in updates but activating it gradually via server-side switches. Many of the new capabilities in KB5064081 will not appear immediately on every machine, even after installation. Instead, the company uses a deliberate gating strategy tied to hardware eligibility (such as a Neural Processing Unit for Copilot+ PCs), licensing status (Copilot/Microsoft 365 entitlements), and regional availability. This staged rollout allows Microsoft to monitor for issues and scale features incrementally. For IT administrators and early adopters, it means validation must account for inconsistent feature availability across a fleet—the presence of code paths does not guarantee immediate user access.
The combined SSU/LCU packaging also demands careful planning. Because the SSU becomes persistent once installed, uninstalling only the cumulative component requires DISM commands rather than the usual wusa.exe method. System image backups or offline images are the safest rollback strategy, especially for managed environments where rapid recovery is critical.
AI Features: Recall, Click to Do, and File Explorer Actions
The headline AI improvements in this build target productivity and discoverability. Recall now opens with a personalized homepage that surfaces Recent Snapshots, Top Apps, and Top Websites, alongside a new left navigation bar for Home, Timeline, Feedback, and Settings. The redesign is meant to help users pick up previous tasks without digging through chronological history. Snapshot capture remains opt-in and can be filtered in Settings, addressing privacy concerns that followed Recall’s initial reveal.
Click to Do, Microsoft’s contextual action tool for text and images, gains an interactive first-run tutorial. Users who skip the tutorial can later relaunch it from the app’s More options menu, making its capabilities—such as summarizing text or editing images—easier to discover.
File Explorer receives its own AI injection through right-click context menus. On supported hardware, users can apply on-device edits like Blur Background, Remove Background, and Erase Objects to images. A Summarize action for documents leverages cloud processing when a Copilot or Microsoft 365 license is detected. These integrations bring generative tools directly into the shell, but hardware and licensing dependencies mean many mainstream users will not see them until their devices qualify or Microsoft expands entitlements.
Taskbar and Notification Center: Seconds Clock and Search Grid
A long-requested power-user feature returns: the Notification Center can now display a clock with seconds. The toggle appears in Settings > Time & language > Date & time as “Show time in the Notification Center,” and some builds may prompt users with a toast notification to enable it. This restores the granular time display that was stripped from early Windows 11 releases, catering to users who rely on precise synchronization or simply prefer the classic look.
The taskbar search experience also improves. When searching from the taskbar icon, image results now appear in a new Grid layout, and a status banner clarifies when indexing is in progress. Enhanced metadata—including file type, availability, and organization events—helps users judge the completeness of search results during background indexing.
Lock Screen and Widgets Customization
Lock screen widgets gain broader control options. Users can now resize, reposition, or remove widgets directly from the Personalization > Lock screen settings page. This capability was previously limited to certain regions (such as the European Economic Area) but is now rolling out more widely. Widget boards also receive additional dashboard layouts, extending glanceable information on both the lock screen and desktop surfaces. Third-party widget availability still depends on developers updating their offerings to support the new placement behaviors.
Windows Hello Redesign
The Windows Hello sign-in flow has been refreshed with a modernized card-like interface that appears consistently across the sign-in screen, passkey prompts, Recall, and the Microsoft Store. The redesign surfaces alternative sign-in methods—such as passkeys—more clearly and simplifies switching between them. While the underlying cryptographic and attestation mechanisms remain unchanged, the visual consistency aims to reduce authentication friction.
Settings: AI Controls, Agent, and Activation Prompts
Controls for on-device generative AI become more transparent. A new “Text and Image Generation” page under Privacy & Security lists which generative AI models apps have accessed and allows per-app toggles. This gives administrators and users a way to audit and govern model usage—an important governance tool as AI features proliferate across the operating system.
For Copilot+ PCs running English-language operating systems, a natural-language Settings agent now helps locate deeply nested or frequently used settings. In some cases, it can make changes on behalf of the user. Microsoft plans to expand availability beyond English and beyond Copilot+ hardware over time.
Activation and expiry prompts have been modernized to match the Windows 11 UI scheme, eliminating the jarring modal dialogs that broke visual continuity in earlier builds. This small polish aligns these notification flows with the overall design language.
Task Manager CPU Reporting Fix
A significant change arrives for power users and IT professionals: the Processes tab in Task Manager now uses an industry-standard formula to display CPU workload. Previously, the “Processor Utility” metric could show a single-threaded peak as 100% on multi-core CPUs, causing confusion. With KB5064081, the percentages across Processes, Performance, and Users tabs become additive and consistent. Users who prefer the legacy behavior can enable a “CPU Utility” column in the Details tab. This fix improves diagnostic accuracy and aligns Windows with how other operating systems report CPU utilization, aiding capacity planning and troubleshooting.
Windows Backup for Organizations and Enterprise Items
Windows Backup for Organizations is now broadly available, enabling enterprises to back up system apps, settings, and personal files to OneDrive for Business or configured organizational targets. Restoring this data during device refresh or replacement simplifies migration and reduces downtime. IT departments should plan for network bandwidth, OneDrive storage policies, and thorough restore testing before relying on it at scale.
Microsoft has also signaled the eventual removal of legacy PowerShell 2.0 components from certain Windows 11 images. Administrators must audit any scripts or automation that depend on the outdated engine and prepare migration plans.
Known Issues and Compatibility Warnings
KB5064081 ships with at least two acknowledged issues. On some systems, an Event Viewer error from CertificateServicesClient appears: “The Microsoft Pluton Cryptographic Provider provider was not loaded because initialization failed” (Error ID 57). Microsoft states this is harmless and related to a feature in development; it does not affect functionality. However, monitoring systems that treat all errors as alerts will need a temporary exception to avoid false positives.
The second issue is more impactful: users of Network Device Interface (NDI) streaming, such as OBS Studio or NDI Tools, may experience delays or uneven audio/video after installing recent August updates. The workaround is to switch NDI Receive Mode to TCP or UDP instead of the default RUDP while Microsoft investigates. This regression is a practical blocker for content creators, broadcasters, and any environment that relies on real-time video feeds between PCs.
How to Get KB5064081
KB5064081 is available as an optional preview through Windows Update (under “Optional updates”) or from the Microsoft Update Catalog. The direct download .msu files are sizable: the 64-bit package is approximately 3806.7 MB, while the ARM64 version is about 3682.1 MB. For offline or image-based installation, administrators can download the standalone installer and apply it with administrative privileges. The Update Catalog also lists the combined SSU/LCU package for scenarios requiring DISM injection.
Users who do not want preview bits should ensure the “Get the latest updates as soon as they’re available” toggle is turned off in Windows Update; otherwise, the update may download automatically on enrolled test configurations.
Deployment Guidance and Risk Assessment
For early adopters and pilot groups, KB5064081 offers a valuable preview of upcoming features and important platform fixes. The Task Manager CPU standardization alone makes it worthwhile for diagnostic workflows, and the AI controls in Settings provide a needed governance surface.
However, organizations must approach this optional update cautiously. The SSU/LCU combination complicates rollback; full system images or offline recovery media are the safest fallback. The NDI streaming regression demands thorough testing in media production environments, and the gradual feature rollout means pilot validation must account for inconsistent feature exposure. Microsoft’s gating model also requires that IT teams verify licensing and hardware eligibility for AI capabilities to set accurate user expectations.
A recommended plan includes piloting on a small ring of representative hardware—covering at least one device per major OEM model and one Copilot+ PC—and validating critical workflows such as Windows Hello authentication, network streaming, and line-of-business applications. Helpdesk and end-user communications should address the Notification Center clock toggle, the Settings agent’s scope, and the fact that many AI features will arrive later via phased enablement.
Who Should Install, and When
KB5064081 is a feature-rich preview that blends meaningful quality-of-life improvements with forward-looking AI plumbing. Enthusiasts and testers who want to explore the new Recall homepage, Click to Do tutorials, and File Explorer AI actions will find the update appealing. Power users gain the seconds clock and a long-overdue Task Manager fix. Enterprises can begin evaluating Windows Backup for Organizations and the AI governance controls in a controlled pilot setting.
Broader production deployment should wait until the known streaming issues are patched and the SSU/LCU rollback implications are fully understood by the installation team. With this update, Microsoft continues to reshape Windows 11 into a more intelligent, context-aware platform—but the company is deliberately pacing the rollout to balance innovation with stability. For those who choose to install now, backing up, testing thoroughly, and expecting variability will lead to the smoothest experience.