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Add Rufus Revoked UEFI Bootloader warning into to FAQ

Homes32
2025-02-21 21:37:32 -06:00
parent 128d10b367
commit 3dfd576e23
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FAQ.mediawiki

@@ -132,5 +132,18 @@ Users may encounter the following error message:
This issue appears to be isolated to users with a host operating system running '''Win10 LTSC 2021'''. Starting the '''WebClient''' service on the host computer resolves the issue.
== Rufus "Revoked UEFI bootloader detected" Warning ==
In newer versions of Rufus (4.6 and later), you may encounter the following message:
<code>
Revoked UEFI bootloader detected
Rufus detected that the ISO you have selected contains a UEFI bootloader that has been revoked and that will produce a “Security Violation” screen, when Secure Boot is enabled on a fully up to date UEFI system.
– If you obtained this ISO image from a non reputable source, you should consider the possibility that it might contain UEFI malware and avoid booting from it.
– If you obtained it from a trusted source, you should try to locate a more up to date version, that will not produce this warning.
</code>
You may choose to press OK to continue. The message is not an error, but a warning from Rufus that pretty much all Microsoft Windows UEFI bootloaders prior to May 2023 are subject to the <a href="https://arstechnica.com/information-technology/2023/03/unkillable-uefi-malware-bypassing-secure-boot-enabled-by-unpatchable-windows-flaw/">Black Lotus Secure Boot vulnerability</a> and, as result, are in the process of being revoked by Microsoft. Since Microsoft is not rebuilding the old ISO's with new boot-loaders this is expected behavior, and basically, your stuck with seeing the warning in Rufus as long as you use an older ISO with the vulnerable bootloader.