How to Reinstall Windows 11 Using Cloud Rebuild

What Cloud rebuild does

Cloud rebuild is a recovery option that replaces the whole Windows installation with a fresh copy pulled from Microsoft’s servers. A recovery drive or installation media supplies the files from a USB stick. Cloud rebuild skips the stick and downloads them.

What Cloud rebuild downloads

Microsoft’s documentation lists three things that come down from the cloud:

• A clean Windows image (the full set of operating system files).
• The latest monthly security update.
• Drivers from Windows Update.

Because the update and drivers arrive during the rebuild, the PC should start with a current Windows build. You should not need a long round of catch-up updates afterward, although it is still worth checking (see the section on checks after the rebuild).

What Cloud rebuild erases

This step cannot be undone. The only way to get your files back is from a backup you made before you started. If you have more than one drive, Microsoft’s notes do not say how the other drives are treated. Back up those as well.

Who can use Cloud rebuild right now

Cloud rebuild is currently available only to Windows Insiders in the Experimental channel. The Windows Insider Program gives early access to Windows features that are still being tested. Early features can change, break or disappear before a public release.

If your PC is on a regular release of Windows 11, you will not see this option. Do not switch a PC to the Experimental channel only to try the feature if it holds work you cannot lose. Use a spare machine or a virtual machine instead.

Because the feature is new, details can change while it rolls out. Microsoft has not published the menu path, button names, screen text or a time estimate, so this guide leaves them out.

If you are not an Insider

You still have ways to reinstall Windows 11 without Cloud rebuild:

• Recovery drive. If you made a USB recovery drive earlier, follow how to reinstall Windows 11 using your recovery drive.
• Built-in recovery options. Microsoft’s support pages point to Settings › System › Recovery for reinstall and repair options.
• Installation media. Microsoft documents both an in-place upgrade (keeps files and apps) and a clean install (wipes the disk) using installation media.

An in-place upgrade is the gentler choice when you want to repair Windows without losing your files. Cloud rebuild is closer to the clean install.

Before you start

Because the disk is formatted, preparation matters more than the rebuild itself, so spend most of your time on the steps in this section.

Back up your files

Copy everything you want to keep to an external drive or cloud storage. Check the Documents, Desktop, Pictures and Downloads folders, and browser bookmarks. Open a few backed-up files from the backup location to confirm they work.

Check your licence and encryption

Microsoft’s installation guidance says Windows must be activated and that the edition you reinstall must match your licence. A digital licence linked to your Microsoft account makes reactivation after a reinstall far less likely to cause trouble. Sign in with that account when setup asks.

If the drive is encrypted with BitLocker (Windows disk encryption), find your BitLocker recovery key before you start. Save it somewhere other than the PC you are about to wipe.

Make a list of what to bring back

The rebuild removes every installed app. Write down the apps you need, along with any product keys or sign-in details. Note printer models and special hardware too, since the rebuild brings drivers from Windows Update and not from your manufacturer’s site.

Admin rights: Microsoft’s notes do not say whether Cloud rebuild needs administrator privileges, so sign in with an administrator account to be safe. Plug a laptop into power, and connect to a stable network, because the download is large.

How to reinstall 🪟 Windows 11 from the cloud

This section covers what Microsoft has documented. The published notes stop before the on-screen setup, so follow the prompts you see from that point.

1. Confirm your PC is in the Experimental channel. Cloud rebuild is currently available only to Windows Insiders in that channel. If your PC is not enrolled, stop and use a recovery drive or installation media instead.
2. Back up your files. Copy your documents, photos and other data to an external drive or cloud storage, then open a few files from the backup to check them.
3. Save your BitLocker recovery key. Do this if the drive is encrypted, and store the key away from the PC you are rebuilding.
4. List the apps you need to reinstall. Include product keys and sign-in details, because Cloud rebuild removes every app.
5. Connect the PC to power and a stable network. A laptop on battery or a weak connection can interrupt the download.
6. Start Cloud rebuild. Microsoft’s notes do not name the menu or button that launches it, so use the option in your Insider build and read each prompt.
7. Confirm that you want to format the system disk. This is the point of no return, because all apps and data on the disk are lost.
8. Wait while Windows downloads and installs. It pulls a clean Windows image, the latest monthly security update, and drivers from Windows Update🔃. Do not turn the PC off.
9. Complete first-run setup when the PC restarts. Expect the same kind of setup screens you see on a new PC. Sign in with the Microsoft account tied to your licence.
10. Check Windows Update🔃 and Device Manager. Install anything pending and look for devices with a warning icon.
11. Restore your files and reinstall your apps. Use your backup and your list from step 4.

What is not documented yet

Microsoft’s notes do not say how long Cloud rebuild takes or how large the download is. Nor do they say what screens appear, or whether the process asks for any option before it formats the disk. They also do not say when the feature will leave the Experimental channel. These details may change as the feature develops, and this guide will not guess at them.

If your screen differs from what you expect, trust the on-screen wording over any third-party description, including this one.

Cloud rebuild compared with other reinstall methods

Choose the method that matches your situation and what you have on hand.

Cloud rebuild

Cloud rebuild needs no USB media. It downloads a clean image, the latest monthly security update, and drivers. It formats the system disk and is limited to Insiders in the Experimental channel.

Recovery drive

A recovery drive is a USB stick you create in advance. It works when Windows will not start, but it needs the stick you made. Follow the recovery drive reinstall guide for the steps.

Installation media

Installation media is a USB stick you create from Microsoft’s tools. Microsoft documents two paths with it: an in-place upgrade that keeps files and apps, and a clean install that wipes the disk. Only the clean install resembles Cloud rebuild’s result.

After the rebuild: checks worth making

The PC should come up with the latest monthly security update already installed. Still, run through a short checklist before you restore everything.

1. Open Settings › Windows Update🔃 and check for anything pending.
2. Open Device Manager and look for any device with a yellow warning icon.
3. Test sound, Wi-Fi📶, Bluetooth🔷 and your display.
4. Restore your files, then reinstall your apps.

A rebuild installs the current monthly update, so a known issue in that update can appear on a freshly rebuilt PC. One recent example is the September 8, 2026 security update. After it, some devices that use USB Audio Class 1.0 (an older standard for basic USB sound hardware) show a “This device cannot start (Code 10)” error in Device Manager. Affected devices may also produce no sound or have unresponsive volume controls.

Microsoft released an extra update outside its normal schedule, KB5129195, on September 14, 2026. It partly fixes the 8-channel and 3D audio modes. Microsoft is still working on the other symptoms.

Some users got sound back by switching the device to 2-channel mode. Try this if the device still produces no sound.

If you use Recall, Widgets or developer tools, reinstall them afterward. Our guides on reinstalling Recall, reinstalling Widgets and reinstalling the Dev Home app cover each one. To bring back a removed Windows component, see how to reinstall optional features in Windows 11.

What to do next

If Cloud rebuild does not appear on your PC, you are probably not enrolled in the Experimental channel, so use a recovery drive or installation media instead. Cloud rebuild is a new feature, and Microsoft may change where it appears and how it works. Check the Windows IT Pro Blog for updates before you rely on it for an important machine.