The latest issue with KB5039302 will render your Windows 11 unusable for a while

Microsoft is working on a fix.

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KB5039302 issue

In a surprising situation that has caused discussion among tech world members, Microsoft was forced to pause launching a certain Windows 11 update because of this. Picture yourself waiting excitedly for the new update and then discovering that your PC is stuck in an endless cycle of restarting.

The update KB5039302, as it happens, has become more of an issue than assistance – leading some PCs into infinite restarts. Microsoft reacted quickly, swiftly recognizing the problem and halting the update to avoid more disorder.

This hiccup had a major impact on systems operating with Windows 11 versions 22H2 and 23H2, particularly those utilizing virtual machines and nested virtualization combined with tools like CloudPC, DevBox, or Azure Virtual Desktop.

For people who may ask, “What’s the fuss about virtual machines?” I would say they are like a computer inside your computer. You can use them for various tasks, such as running different operating systems or protected environments.

These things are useful for developers and IT professionals but sometimes hard to handle. Users who depend on such setups found this bug troublesome, causing Microsoft to carefully examine the problem before continuing the update distribution.

It is notable that this bug was not frequently encountered by those using Windows 11 Home Edition. This may be because virtualization is less common in home setups.

However, Microsoft didn’t leave anything to chance and advised everyone to avoid the update until they could fix it. They are now putting effort into resolving this matter and have committed to keeping users informed about their progress.

This issue is more likely to affect devices utilizing virtual machines tools and nested virtualization features, such as CloudPC, DevBox, Azure Virtual Desktop. We are investigating to determine the precise conditions under which this issue can trigger. Users of Windows Home edition are less likely to experience this issue, as virtualization is less common in home environments.


This KB5039302 issue shows how software updates can be full of surprises. They are designed to improve our systems by providing new features and solving problems, but sometimes, they don’t work as planned, resulting in unexpected issues.

This reminds us that it’s crucial to have recovery plans and backups in place—particularly for individuals who enjoy staying up-to-date with the latest technological advancements. Microsoft’s prompt action to halt the deployment and handle the issue is praiseworthy, indicating their dedication to user satisfaction and system reliability.

We anticipate that a remedy will be accessible shortly, allowing everyone to fully relish the fresh functions and enhancements provided by Windows 11 without any anxiety about constant restarts.

More about the topics: Windows 11, Windows Update