Kernel driver signing issues between different version of Windows

Hi !

I have a signed kernel driver that I am able to install on Windows 7 Pro but not on Windows 7 Ultimate.

On Windows 7 Ultimate, the system reports me that my driver is not signed which is not true.

Do you have experienced anything like this between this two versions of Windows or any other versions ?

Thanks in advance.

Best regards.

Is the cert a sha-2 cert and is the sha-2 update installed?

Bill Wandel

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Subject: [ntdev] Kernel driver signing issues between different version of
Windows

Hi !

I have a signed kernel driver that I am able to install on Windows 7 Pro but
not on Windows 7 Ultimate.

On Windows 7 Ultimate, the system reports me that my driver is not signed
which is not true.

Do you have experienced anything like this between this two versions of
Windows or any other versions ?

Thanks in advance.

Best regards.


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Hi Bill !

I think I am still signing using sha1 … that’s probably the problem :slight_smile:
I will do the update and let you know if is solve my problem !

Thanks a lot for your help.

Best regards.

Matthieu

Hi Bill !

You were right about the problem, I used sha1 so I add to update my signing process to use sha256 :slight_smile:

Thanks a lot for your help !

Il-y-a un KB qu’il faut installer, si non win7 pro va pas accepter le nouvelle SHA 2 certificate.

C’est un bordel, comme d’hab!

not only that but if you are trying to test this starting from a win7 sp1
iso, it is mind mindbogglingly difficult to get updates installed at all,
let alone the kb for sha256. Somebody decreed “no win7 sp2 ever!” and thus
it was.

Mark Roddy

On Thu, Mar 9, 2017 at 7:17 AM, wrote:

> Il-y-a un KB qu’il faut installer, si non win7 pro va pas accepter le
> nouvelle SHA 2 certificate.
>
> C’est un bordel, comme d’hab!
>
> —
> NTDEV is sponsored by OSR
>
> Visit the list online at: http:> showlists.cfm?list=ntdev>
>
> MONTHLY seminars on crash dump analysis, WDF, Windows internals and
> software drivers!
> Details at http:
>
> To unsubscribe, visit the List Server section of OSR Online at <
> http://www.osronline.com/page.cfm?name=ListServer&gt;
></http:></http:>