Microsoft has confirmed an unusual warning for Windows users updating their PCs. If you make a simple mistake, your PC “might remain in a state where it cannot accept further Windows security updates.” Bad news, especially as it will clearly be confusing if and when it happens.

Microsoft has issued a warning about a bug affecting manually created Windows 11 installer media. USB or CD media including the October 2024 or November

Microsoft has clarified that this issue only applies to users who installed the Windows 11 24H2 update using a USB drive or CD

Microsoft has recently found a strange bug in some Windows 11 installations. This may prevent certain users from receiving important security updates. And unfortunately, all it takes to trigger this glitch is to install Windows from a CD or USB drive.

Windows 11 24H2 is more stable than any release of Windows 11, but a bug causes installation issues with new cumulative updates.

Microsoft is warning of an issue when using a media support to install Windows 11, version 24H2, that causes the operating system to not accept further security updates.

To fix the problem, Microsoft says users will have to reinstall Windows 11 24H2 with the latest December security patch.

Microsoft re-affirms the implications of installing Windows 11 on devices that don't have the proper hardware.

Microsoft has confirmed an unusual warning for Windows users updating their PCs. If you make a simple mistake, your PC “might remain in a state where it cannot accept further Windows security updates.” Bad news, especially as it will clearly be confusing if and when it happens.

Installing some recent versions of Windows 11 could leave you vulnerable to security issues due to an update flaw; here's how to avoid the problem.