Microsoft breaks dual boot Windows and Linux PCs in latest security update

With the latest monthly security update, Microsoft has wreaked havoc on dual boot Windows and Linux PCs. It was intended to fix a two-year-old vulnerability in the open-source GRUB bootloader without affecting dual-OS computers, but the update still began to prevent Linux systems from booting normally.

Image source: BoliviaInteligente / unsplash.com

Users who had Windows and Linux installed on the same machine began to complain that when they tried to boot the second system, messages began to appear about a “security policy violation,” or that “something seriously went wrong.” Errors have been recorded in the distributions of Ubuntu, Debian, Linux Mint, Zorin OS and Puppy Linux.

The update was designed to fix a vulnerability that allowed hackers to bypass Secure Boot, a protection against running malware before loading the OS, which is widely used in Windows and Linux distributions. Microsoft promised that the update will block vulnerable Linux bootloaders that could impact Windows security, but will not apply to dual-boot PCs, so it “should not impact those systems.”

There have been no comments from Microsoft about problems with the latest update, but Ubuntu users have already found a workaround that solves the problem. You need to disable Secure Boot in the BIOS, log into your Ubuntu user account and delete the Microsoft SBAT (Secure Boot Advanced Targeting) policy through the terminal. Microsoft has been using Secure Boot for many years, and support for this protocol is necessary for Windows 11 to work to protect against BIOS rootkits. True, in recent years many vulnerabilities have been discovered in Secure Boot, and recently it turned out that the protocol was compromised on a large number of PCs.

admin

Share
Published by
admin

Recent Posts

Despelote — goo-o-o-o-o-o-o-o-o-o-ol! Review

One of my first memories (or perhaps the very first one – is it possible…

16 hours ago

Design and specifications of the flagship smartphone Sony Xperia 1 VII leaked online

A few days before the official presentation, details about the new flagship Sony Xperia 1…

16 hours ago

GTA VI Delay to 2026 Causes New Panic Among Game Developers

Bloomberg journalist Jason Schreier reported on the domino effect triggered by the recent delay of…

17 hours ago

Nintendo warns it will block consoles for users who engage in piracy and hacking

Nintendo has updated its user agreement, formalizing the right to remotely disable Switch consoles if…

18 hours ago

Gigabyte Unveils X870 and B850 Aorus Stealth Motherboards with Back-Side Power Connectors

Gigabyte has unveiled the X870 Aorus Stealth and B850 Aorus Stealth motherboards for Ryzen 7000,…

19 hours ago

Alienware Unveils Thin, Affordable Aurora 16 and 16X Gaming Laptops with Understated Designs

Alienware, a subsidiary of Dell known for its futuristic gaming laptops, has released new high-performance…

2 days ago