Why does the Altera installer exit abnormally when the installation target is the root directory of a drive? - Why does the Altera installer exit abnormally when the installation target is the root directory of a drive? Description Due to a problem in the Altera Installer for Windows version 11.0 and later, installing the Quartus® II software may fail if the target installation is set to the root directory of a drive such as C:\ or D:\ . A message such as the following may appear: Installer subprocess for Arria GX Family exited abnormally. status code = 1 command = "D:\quartus\bin\quartus_sh.exe" --qinstall -qda "D:\11.0sp1_quartus_free_windows\altera_installer\bin\..\..\devices\subscription\arriagx.qda" -show_qt_progress Resolution To avoid this problem, specify a directory underneath the root directory as the installation target. This problem is fixed beginning with the Altera Installer version 12.0. Custom Fields values: ['novalue'] Troubleshooting novalue False ['novalue'] ['FPGA Dev Tools Quartus II Software'] 12.0 11.0 ['Programmable Logic Devices'] ['novalue'] ['novalue'] ['novalue']