Error: TBBmalloc: skip allocation functions replacement in ucrtbase.dll: unknown prologue for function _msize - Error: TBBmalloc: skip allocation functions replacement in ucrtbase.dll: unknown prologue for function _msize Description Due to a problem in the Quartus® Prime Standard Edition Software version 24.1 or earlier, you may see this error message when generating Altera® IP on the Windows* 11 OS (Operating System). Resolution To work around this problem, follow these steps: Go to This PC , right-click, and select Properties . Click Advanced System Setting . In the Advanced tab, select Environment Variable . Under System variables , create a new variable with the name TBB_MALLOC_DISABLE_REPLACEMENT and value as 1 . Click OK and restart the Quartus® Prime Software. Custom Fields values: ['novalue'] Troubleshooting 15017857684 False ['novalue'] ['FPGA Dev Tools Quartus® Prime Software Standard'] No plan to fix 25.1 ['Arria® II FPGAs', 'Arria® V FPGAs and SoCs', 'Cyclone® IV FPGAs', 'Cyclone® V FPGAs and SoCs', 'Arria® 10 FPGAs and SoCs', 'Cyclone® 10 LP FPGA', 'MAX® 10 10 FPGAs', 'MAX® II CPLDs', 'MAX® V CPLDs', 'Stratix® IV FPGAs', 'Stratix® V FPGAs'] ['novalue'] ['novalue'] ['novalue']