Windows 11 26H1 KB5132265 Preview Adds Cloud Rebuild and Customizable Right-Click Menu

First, check whether this build applies to you. Russian outlet Comss.ru notes that KB5132265 targets Windows 11 version 26H1 on PCs with ARM64 (Snapdragon) processors. Most x86 machines run 25H2 or 26H2 and are on a different track. A companion preview, KB5132057, is rolling out to those versions at the same time. This is still an Insider preview, not a general release.

How the rollout works​

Microsoft splits this update into two phases:

• Gradual rollout: Features reach devices in stages, so two identical 26H1 machines may not get the same changes on the same day.
• Normal rollout: A broad release to all eligible devices at once, usually when the update reaches general availability. The bug fixes are in this phase.

Microsoft also says some features may vary by market. Installing the update does not guarantee that every feature below will appear right away.

Section summary: KB5132265 is a 26H1 Release Preview build (28000.3612). It appears to target Arm-based PCs, and most of its features arrive gradually.

Cloud Rebuild: reinstall Windows without a USB drive​

Cloud Rebuild reinstalls Windows 11 using a Windows image and device drivers downloaded from Windows Update. You don't need USB installation media or a custom image, and it works even when Windows won't start.

The drivers are the important difference. Windows 11 already has a "Cloud download" option in Reset this PC. As Neowin quoted from Microsoft's Insider notes, unlike Reset this PC, Cloud rebuild downloads both the target Windows image and the device's drivers from Windows Update, so the device comes back fully functional without USB media, without a custom image, and without depending on the health of the currently installed OS. In practice, it rebuilds Windows from Microsoft's servers instead of repairing the copy already on the disk.

The feature has been in testing for months. Thurrott reported that Cloud Rebuild was first made available on the Experimental Channel in July. HotHardware reported that it shipped in the latest October 28th cumulative update build for Windows 11 versions 26H2 and 25H2. With this build, 26H1 Release Preview users get it too.

How to start Cloud Rebuild​

If Windows still boots:

1. Open Settings > System > Recovery.
2. Select Rebuild PC. The device restarts into the Windows Recovery Environment (WinRE) and starts Cloud Rebuild.

If Windows won't boot:

1. After repeated boot failures, the device enters WinRE automatically.
2. Select Troubleshoot > Recovery and uninstall > Cloud rebuild.

Either way:

1. Connect to wired Ethernet or Wi-Fi.
2. Review the target Windows build, edition, and language.
3. Choose Remove files or Remove & sanitize files.
4. Confirm the data-loss warning. The rebuild then runs and finishes at the Windows out-of-box experience (OOBE), the first-time setup screens.

Data-loss warning​

This is a full reinstall, not a repair. VideoCardz summarizes it this way: Cloud rebuild performs a full reinstall and removes locally stored files, installed applications, accounts and settings from the system disk.

Microsoft's Cloud Rebuild guidance separates the two options:

Microsoft says sanitization depends on how the storage hardware implements its erase command, and Windows can't independently verify the result. Cloud-stored data such as OneDrive isn't affected. Back up anything you need, keep the device plugged in, and don't shut it down during the process. Interrupting a rebuild can leave Windows unable to boot.

BigGo also reports that a BitLocker recovery key is required if BitLocker is enabled. Microsoft's release notes don't mention this, but having your key ready before any recovery operation is good practice anyway.

Prerequisites​

PC Guide lists the requirements: WinRE itself needs to be working, the computer needs an internet connection through Ethernet or Wi-Fi, and the necessary hardware drivers must be available through Windows Update. Microsoft's own guidance adds that the device must meet minimum hardware requirements. The manufacturer must also have included a compatible network driver in WinRE.

To check WinRE before you need it, run reagentc /info from an elevated command prompt. If WinRE is disabled or broken, Cloud Rebuild won't be available when you need it.

For IT administrators: the Recovery CSP​

Administrators can configure and start Cloud Rebuild remotely through the Recovery CSP. A rebuild can target either the currently installed build or a specified target build. The CSP can also allow or block each type of rebuild and report the result of the most recent remotely started rebuild.

There's one limitation. Microsoft says you can't currently start a rebuild through a custom OMA-URI setting, such as a custom Intune configuration profile, because the required CSP settings must be committed together in one atomic operation. Microsoft says support is planned for a future update.

For Entra-joined, Intune-managed devices registered with Windows Autopilot, Microsoft describes the recovery path:

• Intune redeploys assigned apps and policies.
• Backup for Organizations restores settings.
• OneDrive files become available after sign-in.

HotHardware's assessment of the enterprise case: a manual Windows reinstall is tedious enough for one machine without needing to worry about a potential fleet of soft-bricked PCs.

A reality check​

Not everyone is convinced yet. A commenter on The FPS Review argued that if a PC is unstable enough, using a flash drive is the only way around this since it bypasses whatever is on the system drive during the BIOS handoff. That's one user's opinion, not a test result. Still, keeping a bootable USB installer in a drawer remains a sensible backup plan.

Section summary: Cloud Rebuild downloads both a fresh Windows image and drivers from Windows Update. It needs a healthy WinRE and network access, and it can be triggered remotely through the Recovery CSP. It wipes local data, and the sanitize option can't be undone.

WinRE can now use your saved Wi-Fi​

Cloud Rebuild needs an internet connection, and until now WinRE was often bad at getting one. This update lets WinRE automatically reuse eligible Wi-Fi profiles already saved in Windows, including supported certificate-based networks. That means recovery tasks such as Quick Machine Recovery and Cloud Rebuild can get online without anyone setting up Wi-Fi credentials inside WinRE.

The capability is on by default, and admins can turn it off. Microsoft says it was announced last month and is only now beginning to roll out. As The FPS Review put it, a cloud reinstall is useless if the recovery environment can't reach the internet.

File Explorer: a right-click menu you can customize​

Microsoft says the new context menu opens faster and is less cluttered. Select Customize menu at the bottom of the menu to open its settings page, where you can:

• Turn built-in commands such as Send to and Create shortcut on or off.
• Add commands such as Print.
• Choose which app extensions appear in the main menu or a submenu, or hide the extensions submenu entirely.
• Show Cut, Copy, Paste, Rename, Delete, and Share as regular menu items instead of the icon row.
• Move Properties to the bottom of the menu.

You don't need to do anything to keep the default layout. Microsoft's notes also mention holding Shift while right-clicking the desktop to see more options. Ever since Windows 11 introduced "Show more options," the right-click menu has been one of its most-criticized changes. Letting users choose what appears there is a significant concession.

Other File Explorer changes:

• Search results show name, location, and date in a consistent layout, so they're easier to scan.
• The address bar accepts ~ as a shortcut to your user profile. Typing ~\AppData goes straight to your AppData folder, the same way ~ works on Linux and macOS.
• Folder Options now supports dark mode.

Task Manager, Xbox Mode, taskbar, and Settings​

• Task Manager: The Memory page under the Performance tab now accounts for all installed system memory, so its figures add up to your PC's total RAM.
• Xbox Mode: A refreshed Gaming Task View adds a navigation bar with Exit to Desktop and Power Options, so you can reach system controls while gaming. Availability may vary by market.
• Taskbar: App window preview animations are smoother when you move the mouse across taskbar icons. Taskbar settings for multiple monitors should also be remembered more reliably when monitors are connected or disconnected.
• Privacy & security: Camera, Microphone, and Location controls are grouped together, and usage information now appears on the main page.
• Device Info card: The card on Settings Home, introduced in the March 2026 preview, is expanding to more markets. It's available to users signed in with a Microsoft account and shows key PC specs and usage. Full details remain under Settings > System > About.
• Storage: The Temporary files section under Settings > System > Storage gets small visual tweaks.
• Phone Link in Start: Hover over a recent message or notification in the Recent section to preview it without opening it. You can manage this under Phone Link > Settings > Start menu personalization.

Accessibility: Magnifier, Live Captions, and Narrator​

Magnifier​

• Contrast theme toggle: Available from the Magnifier toolbar. It reduces glare while keeping the original colors in photos, videos, and charts. It uses a dark contrast theme by default, and you can pick other themes under Settings > Accessibility > Magnifier. Color inversion is still available as a separate option.
• Per-monitor zoom: Each display can have its own zoom level, and the magnified view stays on that display. Your displays must be set to Extend under Settings > System > Display. It's on by default. To zoom a display, point at it and press Windows + Plus or Windows + Minus, use Ctrl + Alt + mouse wheel, or use the toolbar.
• Viewport locking: Keeps the magnified view on one display fixed while you move the pointer to another, and the locked display stays interactive. Press Ctrl + Windows + K to lock or unlock a display, and Windows + Esc to release all locked displays. You can change the lock shortcut to Ctrl + Alt + P in Magnifier settings.

Live Captions​

A new Include screen reader audio setting is off by default. While it's off, Live Captions won't transcribe audio from screen readers such as Narrator, JAWS, and NVDA, so captions stick to microphone and system audio. You can turn it on under Settings > Accessibility > Captions.

Narrator math navigation​

Narrator can now read and navigate equations in supported Microsoft 365 apps, including Word and PowerPoint. It also works on supported web content in Edge 153.0.4234.32 or later and Chrome 153.0.8010.18 or later.

• Press Narrator key + Alt + N to turn on math navigation.
• Use the arrow keys to move through parts of an equation.
• Press Esc to exit.

Supported languages are English (US), English (UK), Traditional Chinese, Finnish, German, and Spanish. You can change preferences under Accessibility > Narrator > Math reading. For blind and low-vision students working with formulas and scientific notation, this is one of the most meaningful changes in the build.

Family Safety messages are also clearer when an app is blocked by age-based parental controls.

Battery, security, networking, and text​

• Adaptive hibernate: Windows now hibernates less while the battery is above 80%, so resuming from Modern Standby is faster. It hibernates sooner when the battery drops below 10% to save power.
• Memory integrity (HVCI): On eligible devices, memory integrity might be turned on during updates. Microsoft says this respects existing user and IT admin choices. Admins who track driver compatibility should watch for it on their fleets, because some older drivers don't work with HVCI.
• IPv6 CLAT: Wi-Fi and Ethernet now support client-side 464XLAT translation, which lets IPv4-only apps reach IPv4 services from IPv6-only networks. PREF64 is discovered through router advertisements by default, with DNS ipv4only.arpa as a fallback. It requires SLAAC-based IPv6 addressing, and DHCPv6 Prefix Delegation and WSL aren't currently supported. You can enable it with netsh interface clat set global permit=enabled pref64fromdns=enabled pref64fromra=enabled or through Group Policy under Network > TCPIP Settings > IPv6 Transition Technologies.
• Unicode 17.0: Windows text shaping now supports Unicode 17.0, which added 4,803 characters and four new scripts: Beria Erfe, Sidetic, Tai Yo, and Tolong Siki.
• Windows Spotlight: Under-the-hood changes are meant to make lock screen images more reliable.

Fixes in the normal rollout​

• Miracast connections could default to a lower resolution with certain wireless display receivers.
• The Microsoft 365 subscription upgrade option could stay visible after a successful upgrade and cause an error if selected again.
• Sage 50 Accounting could close unexpectedly when certain options were selected.
• A false "Someone else is using this PC" warning could appear at shutdown or restart even when no one else was signed in.

What it means for you​

If you're on a 26H1 Release Preview PC, most of the features above will arrive over the coming weeks. Before you need Cloud Rebuild, run reagentc /info to confirm WinRE is healthy, keep your BitLocker recovery key handy, and back up your data. The tool is only as good as WinRE's ability to get online.

Admins piloting Recovery CSP should plan around the current custom OMA-URI limitation and confirm that their Wi-Fi profiles qualify for WinRE reuse. HVCI and IPv6 CLAT are also worth piloting before wider deployment.

Everyone else gets a right-click menu they can finally customize. And Cloud Rebuild may mean fewer hunts for that one working USB stick.