Heads-up: A newly-released Windows Update is triggering the Blue Screen of Death (BSOD) on Surface devices and other Secure Boot-enabled PCs that are running the Windows 10 preview. Fortunately, there is a workaround if you’ve already installed the update.
The Windows Update you’re looking for is KB3105208, which is described as the Windows 10 Insider Preview October Update, a cumulative update. You’ll only see this update if you’re using the Windows 10 preview.
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More important, you’ll only have issues with this update if you are using a Secure Boot-enabled PC, which includes all Surface devices, including Surface Pro 3, Surface Pro 4, and Surface Book. On such machines, the PC simply Blue Screens and is unusual.
The workaround, Microsoft reports, is to disable Secure Boot in the system firmware. How you do this varies from PC to PC, but on a Surface, you shut down the device, press and hold on the Volume Up button, and then press Power. The Surface UEFI screen will appear, letting you disable Secure Boot (under Security).
Microsoft says it will issue a fixed version of the Windows Update soon, and it is pulling the current version. That said, many people have of course already installed the update because—wait for it—Windows 10 does this automatically, and there is no way to prevent it.
Should be fixed soon….