Industry observers note that wracked with issues like crashing platform releases , broken printers and PDFs , and Teams and Outlook failures on Arm PCs , the very same patch is also causing major instability on HP and Lenovo laptops. It’s been over a month since Microsoft rolled out KB5121003 —known as the August Patch Tuesday patch—and we’re still feeling the effects of it.
In a fresh development, one user said that HP support blamed the patch for corrupting the BIOS, forcing the user to reset their BIOS in order to fix the issue and retry the patch. As reported by Neowin , the KB5121003 patch is apparently causing installation problems on HP laptops, with numerous users confirming the issue on Microsoft’s support forum.
Industry observers note that that’s a huge inconvenience for laptop owners when they need to charge up, yet neither Lenovo nor Microsoft have commented on or acknowledged the issue. Notably, rolling back the KB5121003 patch seems to make the problem go away. Also reported by Neowin , the KB5121003 patch is apparently also causing an issue on Lenovo laptops where AC power is randomly being disconnected.
The report highlights that if you’re dealing with unexpected system instability or other problems after installing patch KB5121003, your best bet right now would be to roll back the patch and wait for future fixes.