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Thread: Vista Requires Digitally Signed Drivers?

  1. #1
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    Default Vista Requires Digitally Signed Drivers?

    My laptop HDD took a dump so I had to replace it. The laptop is old as hell, but it's my tuning laptop so who cares. As such, I still have Vista however I've always had Vista and I've always had V7.5 with no troubles over the course of multiple hard drives. This last one was from 2011 though so I think I got my money's worth out of it. Anyway, I got Windows back on and reinstalled EFILive no troubles, but Windows is claiming there are no USB drivers installed. Per the install software, they were installed with 7.5 for Vista but when I plug in the V2 it's a no go. I directed Windows to my install CD and it's now claiming that Vista requires digitally signed drivers and that my drivers are not digitally signed so I'm dead in the water. I don't ever recall encountering this before and a quick google search didn't get me anywhere. What am I missing?

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    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  2. #2
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    Oh it gets better. I rebooted the laptop and nothing changed. Next I went into the device manager to attempt to update the drivers by manually selecting the location (C:\Program Files\EFILive\Drivers\Win-XP-Vista-7-8) and it claimed the best driver was already selected. The little yellow exclamation mark remains next to it and when I click properties it claims the drivers are missing. I'm 100% stuck.

    When I opened the CD, I right clicked and opened the CD as "Explore", then right clicked the EFILive Installer and ran as administrator.

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    I also just went full nerd and created a legit admin account, so if it's a privileges thing I think I can trump that now.
    Last edited by Supercharged111; May 26th, 2019 at 05:11 AM.
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  3. #3
    Joe (Moderator) joecar's Avatar
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    Did you get the driver installed...?

  4. #4
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    I really can't tell if it's installed and unusable or what, all I know is that it doesn't work and I've never seen this error mode before. Was hoping Blacky would have seen this thread.
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  5. #5
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    Can you tag people on this forum?
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  6. #6
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    Start by downloading the the latest version (2.08.28) of the USB drivers from the main EFILive site. The driver package should be the same for Vista as Win 7, so you shouldn't have any issues using the latest version. Start with using the Uninstall option within the USB package, reboot, then reinstall the drivers, reboot again, then plug your V2 in. Check the driver version as well. Try a different USB cable.

    If you're using a CD, guarantee it's outdated. If that doesn't work and you're not running the latest software versions, EFILive will probably tell you it's not a supported config and won't assist unless you upgrade.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, starting the mods
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  7. #7
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    I have a newer 7.5 I can install, but I'm not going any newer than that because I want to retain the ability to tune a Duramax for when I eventually get one. The thing that I don't get is that this CD was installed on this Vista on another hard drive and worked just fine. In fact, I could probably put that HDD back in the laptop and it'd work for 10 or so minutes before crashing.
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  8. #8
    Diesel Forum Support Site Admin
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    You have the same functionality in old versions of V7 as well as new versions. We never removed any parameters. What we did do was change the way we developed new support. Update your software and let us know how you go.


    Sent from my iPad using Tapatalk

  9. #9
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    Hmm, just did some reading and I guess it's not the end of the world. I don't think I'll be able to open my old V7 files anymore? If not, I do have this HDD partitioned, could I have 2 versions of EFILive software installed at one time? Obviously I wouldn't have V7 with the intent to flash as the firmware wouldn't be compatible, but it would be nice to copy/paste stuff over from my old tunes if possible.
    1998 GMC Sierra K1500 5.7/4L80E, longtubes, 411 w/COS 5, marine cam/intake, Whipple. 91 octane at 6000'.
    1997 GMC Sierra K3500 7.4/4L80E, 411 w/COS 3, Whipple, small cam.
    2004 Corvette Z06 with longtubes.

  10. #10
    Diesel Forum Support Site Admin
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    Default Vista Requires Digitally Signed Drivers?

    New software still allows you to open and use old files, although you will be asked to save them in the current format. The restriction is backwards compatibility - you cannot use new files in old software. In my testing of the new release yesterday I was opening files from 2010 in 2019 software.

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