Why does the Altera® Advanced Link Analyzer Crash or Produce Incorrect Results on Microsoft Windows 11* 25H2 Virtual Machines? - Why does the Altera® Advanced Link Analyzer Crash or Produce Incorrect Results on Microsoft Windows 11* 25H2 Virtual Machines? Description The Altera® Advanced Link Analyzer may crash or produce incorrect simulation results on Microsoft® Windows 11 version 25H2 virtual machines configured with ABI‑based virtual CPU models. This problem occurs because the Intel® Math Kernel Library (MKL) depends on hardware‑faithful x86 CPU execution semantics, which are not fully guaranteed by ABI‑based vCPUs in Microsoft Windows 11 25H2. Resolution To work around this problem, you can configure virtual machines as follows: Microsoft Windows* 11 version 25H2 Use a hardware-faithful vCPU (for example, VMware ESXi* or VMware Workstation* default vCPU) On KVM/QEMU platforms, enable host CPU passthrough Microsoft Windows Server 2022, Windows Server 2025, and Windows 11 version 24H2 or earlier ABI-based virtual CPUs are supported; no changes required Additional Information This problem only affects Microsoft Windows 11 version 25H2 virtual machines using ABI‑based virtual CPU models. Other Windows versions and hardware‑faithful virtual CPUs are not affected. Custom Fields values: ['novalue'] Troubleshooting 16029962544 novalue ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Pro'] 26.1 26.1 ['Agilex™ 3 FPGAs and SoCs', 'Agilex™ 5 FPGAs and SoCs', 'Agilex™ 7 FPGAs and SoCs', 'Agilex™ 9 FPGA Direct RF-Series', 'Agilex™ 9 FPGAs and SoCs', 'Arria® 10 FPGAs and SoCs', 'Cyclone® 10 GX FPGA', 'Stratix® 10 FPGAs and SoCs'] ['novalue'] ['novalue'] ['novalue']