STK (Systems Tool Kit) by Ansys/AGI crashes on launch - Parallels 26 / MacBook Pro M5 / Windows 11 A

Discussion in 'Parallels Desktop on a Mac with Apple silicon' started by Den4, Mar 28, 2026.

  1. Den4

    Den4 Bit poster

    Messages:
    2
    STK (Systems Tool Kit) by Ansys/AGI crashes on launch - Parallels 26 / MacBook Pro M5 / Windows 11 ARM
    Hi everyone,
    I am trying to run AGI STK (Systems Tool Kit) inside a Windows 11 virtual machine on Parallels Desktop 26, on a MacBook Pro with Apple M5 chip. STK crashes silently every time a new scenario is created, before any user interaction is possible.
    Here is my setup:
    ∙ Mac: MacBook Pro, Apple M5
    ∙ Parallels Desktop: version 26 (latest)
    ∙ Guest OS: Windows 11 ARM (Home and Pro, both tested)
    ∙ STK versions tested: 12.9.1, 12.10.1 -- all crash identically
    The Windows Event Viewer shows the following error on every crash:
    ∙ Faulting application: AgUiApplication.exe
    ∙ Faulting module: AgGx3dScene.dll
    ∙ Exception code: 0xc0000005 (Access Violation)
    This is clearly a rendering/GPU issue. STK uses legacy OpenGL for its 3D scene engine.
    Workarounds already attempted without success:
    ∙ Enabled "Use software rendering" in STK Preferences > General > Graphics
    ∙ Disabled GPU Accelerated Analysis
    ∙ Set AgUiApplication.exe to "Power saving" in Windows graphics settings
    ∙ Launched STK with -softwareRendering flag (not recognized in STK 12.10)

    Anyone any help? Thank you in advance
     
    Den4, Mar 28, 2026
    #1
  2. Trishna Oobeyram

    Trishna Oobeyram Staff Member

    Messages:
    492
    Hello,
    Kindly proceed with the steps below:
    1. Reproduce the issue.
    2. Collect a technical report. To generate the report, right-click on the Parallels icon in Dock > Help > Send technical data > check "Attach screenshots..." > press Send Report, and provide us with the report's 9-digit ID in reply.
    Regards,
     
    Trishna Oobeyram, Apr 9, 2026
    #2
  3. C.Sal

    C.Sal Bit poster

    Messages:
    1
    Hello,

    I also experienced issues running the STK program in a similar environment, and I've been using the following workaround:
    However, I'd like to note that I discovered this method by chance, and I'm not sure if it is the best solution.

    1. Go to the properties of the AgUiApplication.exe file.
    2. Click on the Compatibility tab.
    3. Click Windows on Arm -> Change emulation settings.
    4. Check "Hide Newer emulated CPU features (x64 apps only)", then click OK.
    5. Run STK

    Regards,
     
    C.Sal, Apr 12, 2026
    #3

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