Microsoft: KB5015882, KB5015814 updates break Start menu in Windows 11

According to several reports and Microsoft’s documentation, the last two cumulative updates for Windows 11 – KB5015882 and KB5015814 – are causing significant issues for some users. The latest round of updates could make the Start menu disappear as soon as you try to open it, thanks to a bug in the operating system.

The most recent optional update (KB5015882) brought a new notification feature to Windows 11. The update added an option to get urgent alerts even when the focus assist feature is on. Focus assist is similar to “Do not disturb” for those unaware and is also available on Windows 10.


Another new addition is the ability to update to a newer Windows 11 version during the OOBE. This means you can install feature updates at the very startup of the operating system, but it will only work when the device is eligible for the update. While it sounds like a nice update on paper, users have reported that KB5015882 breaks the Start menu.

There’s a growing number of reports suggesting that there are some critical issues with the Start menu. In our tests, we observed that the Start menu wouldn’t launch when we pressed the Start button. In other words, the update is making the Start menu disappear for some users.

Windows 11 KB5015882, KB5015814 issues

The bug also affects the ‘Windows key on your keyboard. Thankfully, Microsoft is aware of the reports, and the company has quietly acknowledged that a bug in KB5015814 or KB5015882 affected a “small number of devices” where users cannot open the Start.

On affected PCs, clicking or selecting the Start button or using the Windows key on your keyboard might have no effect.

Microsoft has already issued a server-side emergency update to address the broken Start menu, but it can take up to 24 hours to propagate automatically to all devices. If the Start button is still not working on your device, make sure you reboot the Windows device as it can apply the update to your device faster.

Enterprise customers can find the particular group policy in Computer Configuration > Administrative Templates > KB5014668 220721_04201 Known Issue Rollback > Windows 11.

Download the emergency patch offline installer from here to fix the broken Start menu in Windows 11.

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