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Old 05-25-2012, 09:27 PM
Galdorf Galdorf is offline
 
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Default AV rescue disk no longer working on new motherboards with uefi

I built a few new systems one came back with viruses they un-installed the av and got infected i tried all of the major brand rescue disks none boot.

Kaspersky
ESET
AVG
Bitdefender
Panda
Avast
Norton

Not one would boot guess they will need to make new rescue disks that can work with uefi bios.
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Old 05-25-2012, 10:18 PM
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KompuKare KompuKare is offline
 
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Haven't had any virus in with UEFI BIOSs, but surely you should be able to get them to boot if you set SATA to legacy?

But anyhow, for an offline scan there's nothing wrong with taking the HDD to a bench machine.
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Old 05-25-2012, 10:35 PM
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NYJimbo NYJimbo is offline
 
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Can you determine why a UEFI bios would not allow a DVD/CD disk to boot ?

I dont think the fact they have AV software is an issue, its not part of the booting process. ALL A/V software is application, not part of the BIOS or boot time software layers.

It just doesnt make sense that UEFI BIOS would fail a DVD/CD boot just because the apps on it have virus software.

Quote:
one came back
You're not making this call based on how ONE machine works, are you ?

Last edited by NYJimbo; 05-25-2012 at 10:39 PM.
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Old 05-25-2012, 11:17 PM
Mr.Mike Mr.Mike is offline
 
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Is the HDD NTFS or FAT 32? I found this bit on info in Wikipedia

OS loaders are a class of UEFI applications. As such, they are stored as files on a file system that can be accessed by the firmware. Supported file systems include FAT32, FAT16 and FAT12. Supported partition tables include MBR and GPT. UEFI does not rely on a boot sector.

Maybe this helps?
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Old 05-25-2012, 11:48 PM
Galdorf Galdorf is offline
 
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No i have tried this on 3 machines all have windows 7 home prem 64bit the disks would just not boot it no matter what the sata settings were.
I tried some strait from the retail box no scratches or finger prints maybe its because it does not support Z77 chipset i guess one was biostar Z77 the other Asus Z77.
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Old 06-04-2012, 03:22 PM
Galdorf Galdorf is offline
 
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I just downloaded updated versions of the av boot disks they now boot on new systems they must have updated with new drivers to support new chipsets.
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Old 06-04-2012, 05:54 PM
Encrypted Existence Encrypted Existence is offline
 
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Quote:
Originally Posted by Galdorf View Post
I just downloaded updated versions of the av boot disks they now boot on new systems they must have updated with new drivers to support new chipsets.
That's great. Thanks for sharing.
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