Microsoft Broke Linux PCs; Now Microsoft Sites Credit It With 'Fixing' What It Broke (a Year Later)

posted by Roy Schestowitz on May 15, 2025,
updated May 20, 2025

• Neowin ☛ Linux backdoored Windows 11 dual boot to finally play well as Abusive Monopolist Microsoft fixes nine-month old bug [Ed: Vandalism by the company]

  Microsoft has finally fixed a nine-month old bug that would not let backdoored Windows 11 PCs dual boot with Linux.

• Bleeping Computer ☛ Microsoft fixes Linux boot issues on dual-boot Windows systems

  This issue is triggered by a Secure Boot Advanced Targeting (SBAT) update that blocks UEFI shim bootloaders vulnerable to exploits targeting the CVE-2022-2601 GRUB2 Secure Boot bypass.

Update

More of this spin:

• Microsoft Fixes Windows 11 Update That Broke Dual-Boot Linux Systems

  A Windows security update released in August 2024, known as KB5041585, caused issues for users running dual-boot systems with Windows 11 and various Linux products like Ubuntu, Debian, and Linux Mint, as reported by Neowin.

  The update was meant to add new Secure Boot Advanced Targeting (SBAT) protections to block outdated and probable vulnerable bootloaders by checking the Secure Boot DBX, a database of blacklisted UEFI executables. However, Microsoft says the update did not always correctly detect customized dual-boot setups. As a result, some users saw their Linux systems fail to start, receiving a “Verifying shim SBAT data failed: Security Policy Violation” error.

Also in Linuxiac:

• Microsoft Fixes Windows Update That Broke GRUB in Dual-Boot Systems

  Microsoft finally fixed the GRUB boot issue on dual-boot systems nine months after a Windows update caused widespread Linux boot failures.

More spin from Microsoft apologists:

• 9 Months Later, Microsoft Finally Fixes Linux Dual-Booting Bug

  In August last year, dual-booting Windows and Linux on Secure Boot-enabled systems was broken due to a faulty security update that was meant to address a GRUB bootloader vulnerability that allowed malicious actors to bypass Secure Boot's safety mechanisms.

Revisionism and lies:

• Microsoft just fixed a 9-month-old Windows bug, which is why it's the perfect time to try Linux

  After nearly a year, Microsoft finally fixed a Windows 11 bug from last August, making it easier than ever to try Linux.

  In its May 2025 patch, which also saw Recall return, Microsoft resolved a nine-month-old bug that made it difficult or impossible to dual-boot Windows 11 with another operating system, specifically Linux.

  Now that the bug has been resolved, it's the perfect time to try Linux and maybe even leave behind Windows 11.

'Only' 9 months:

• Microsoft finally solve the Linux dual-boot issue after 9 months

  Microsoft did tweak this so that from September 19, 2024 and later updates did not do this automatically, but the damage was already done.