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Dax unsigned, win 7 update not working, KB3004394 dubious, dead in the water

butch alline
butch alline Member
edited May 2020 in SmartSDR for Windows
I have not read all 4,172 responses to "DAX unsigned..."
I have filed a support ticket. No joy yet.
I have installed KB3004394 and waited 36 hours (48 actually).
I have doubts if KB3004394 actually works per http://borncity.com/win/2014/12/10/update-kb3004394-breaks-root-certificate-in-windows-7-windows-server-2008-r2/
I have tried to update my root certificate using Windows update, but as of 3 days ago, Win update just runs forever without showing any progress.
I have uninstalled, re-installed SSDR and rebooted until I got blisters on my fingers.
I could not load screen shot here ;-(

If there is anyone out there who has overcome the "DAX unsigned" problem and is actually running DAX please help me. Maybe send me a list of all Win 7 updates you have installed?

Trying to run Win 7 HP, Flex 6300, SSDR



  • Stu Phillips - K6TU
    Stu Phillips - K6TU Member ✭✭
    edited May 2020

    I too had the same problem as you on a much out of update computer.  It took 48 hours of running Windows updates and over 350 different patches to get the computer up to date.  I just left it running to see if it would ever finish - much to my surprise it did.

    Alas, the only other solution I could suggest would be to upgrade the computer to Windows 10.

    The problem is not that the drivers are unsigned but that the out of date version of Windows 7 does not include Microsoft's new root certificate that was used to sign the certificate they issued to FlexRadio.

    I wish I had better news for you.
    Stu K6TU

  • EA4GLI
    EA4GLI Member ✭✭✭
    edited November 2016
    Try this https://community.flexradio.com/flexradio/topics/smartsdr-1-6-17-installation-problems I went through the same nightmare with Windows updates. There is a solution.
  • Keith Flint
    Keith Flint Member
    edited December 2016
    I had your exact problem with win7 and SmartSDR V1.6.21 I submitted a ticket, did everything they said to do, and made sure that I had all of the updates for win7, waited a day, then ran that kbxxx file that support pointed me to, and low and behold, the certificates did update, and I was all set. You have to just let windows update contintue to churn, overnight if need be, and be patient. that worked for me. Keith W7ZAC
  • butch alline
    butch alline Member
    edited December 2016
    Thanks to all responders.  The point that I missed was that the computer needs to run uninterrupted for hours.  My 225 updates took a mere 8.7 hours plus restart, wait, restart, etc.
    I can hardly wait to be pushed and shoved into win 10!

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