This week, many PC users with dual-boot configurations of Windows and Linux encountered a troubling message: “Something has gone seriously wrong.” The latest Windows update for both Windows 10 and Windows 11 seems to be causing significant issues for those with Linux installations when Secure Boot is enabled.
The update appears to render secondary Linux systems inoperable while allowing Windows to function normally. Reports from Ars Technica indicate that this problem affects a broad range of Linux distributions. The issue may stem from a fix related to CVE-2022-2601, a 2022 vulnerability aimed at enhancing Secure Boot security.
Microsoft’s patch documentation suggested that recent Linux distributions should remain unaffected. The FAQ states:
“The SBAT value is not applied to dual-boot systems that boot both Windows and Linux and should not affect these systems. You might find that older Linux distribution ISOs will not boot. If this occurs, work with your Linux vendor to get an update.”
However, Linux users are reporting that the SBAT fix has disrupted their dual-boot setups, contrary to Microsoft’s claims. While Microsoft has not addressed the issue publicly, some affected users have found temporary fixes involving Secure Boot deactivation and SBAT policy removal. The lack of an official statement from Microsoft is a concern for many technical users who rely on Linux for critical tasks.
