If you have a computer that you can no longer run the Windows and Linux operating systems in Dual-Boot, you are not the only one. A recent Microsoft security update has caused major problems for Dual-Boot computers with Windows and Linux.
Microsoft launched a security patch last week to remedy a two-year-old vulnerability in Grub, a Loader Open-Source boot on many Linux devices. Although the update should not have affected the dual-boot devices, many users have found that it now prevents their Linux installations from loading correctly.
According to ARS TECHNICA, many users of dual-boot systems have encountered messages "security policy violation"And errors indicating that something does not work well (“Something has gone seriously wrong”). Există numerous reports About these problems on Reddit, Ubuntu forums and other platforms. Linux distributions affected by the Microsoft patch include Ubuntu, Debian, Linux Mint, Zorin OS and Puppy Linux. In other words, it affects the most used Linux distributions.
Related: How to install Windows 11 on MacBook (Boot Camp Assistant)
How this problem appeared on Dual-Boot computers with Windows and Linux
It had to be a security patch that would not affect the Dual-Boot systems. The update aimed to solve a vulnerability that allowed hackers to bypass Secure Boot, a technology widely used by both Windows and Linux distributions, to ensure that malicious firmware is not loaded during the boot process. Earlier this month, Microsoft announced that it will apply "a Secure Boot Advanced Targeting (SBA) update to block Linux vulnerable boots that could have an impact on Windows security," but said that the update will not be applied to Dual-Boot systems with Windows and Linux, so "they should not affect these systems". Unfortunately, that's just what happened. Immediate problems for Dual-Boot computers with Windows and Linux began to immediately arise after this security update.
Microsoft has not yet commented on the issues caused by this update, but there is a temporary solution for Ubuntu users, which involves deactivating Secure Boot at the level of the BIOS, then logging into a Ubuntu user account and opening a terminal to delete Microsoft's Policy.
Microsoft has been using Secure Boot in Windows for years and has made it an essential requirement for Windows 11, to make sure against BIOS rootkit. In fact, this was a major problem for older computers, which Windows 11 could not be installed for this reason. In addition, over the years, security experts have discovered numerous vulnerabilities in Secure Boot, and recently it has been found that Secure Boot is completely compromised on many computers.
