AVX support on Windows 11/ARM64

Discussion in 'Parallels Desktop on a Mac with Apple silicon' started by AndrewC46, Dec 1, 2022.

  1. AndrewC46

    AndrewC46 Bit poster

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    In my Windows 11/ARM64 VM running in Parallels on M1 any Windows x64 code that calls AVX will fail with an illegal instruction.
    This seems to be a limitation of the x86/x64 emulator built into Windows 11 that also applies to Rosetta. I assume this is because emulating AVX is just not feasible on the current ARM architecture.
     
    AndrewC46, Dec 1, 2022
    #1
  2. AndrewC46

    AndrewC46 Bit poster

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    Apparently the latest builds of windows 11 on ARM64 will emulate AVX. Will this apply to a parallels VM on M series Macs?
     
    AndrewC46, Nov 2, 2025 at 7:33 AM
    #2

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