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Thread: Can't Install Latest Software

  1. #1
    Lifetime Member
    Join Date
    Mar 2009
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    746

    Default Can't Install Latest Software

    I can download the newest V7 and V8, but they won't open for me to be able to install them (tried twice). I double click and nothing happens. Try to run as administrator and I get a momentary spinny wheel then nothing. I need at least V7.5.36 which is the May 2021 release. I'm running Windows Vista 64 bit. What gives?
    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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    Aug 2013
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    735

    Default

    V7.5 no longer supports installation to Windows XP or Windows Vista. This change is due to SHA1 having been deprecated by digital certificate authorities.

    V7.5 and V8 are now only supported on Windows 7, 8, 8.1 and 10.

  3. #3
    Lifetime Member
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    Mar 2009
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    Default

    I'm having trouble finding what the latest software version was that supported Vista, when perusing previous software drops I'm not seeing a mention but this was also probably only a 1 time thing.
    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.

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