Starting with Windows Vista x64 and continuing through Windows 11, Microsoft mandated that all printer drivers must run in . Furthermore, 64-bit Windows cannot load 32-bit kernel drivers. This broke compatibility with thousands of legacy plotters whose vendors never released updated 64-bit drivers.
: When prompted for a driver, select Have Disk and browse to the folder where you extracted the win-x64-hpgl2-drv files. win-x64-hpgl2-drv.exe