Altera Quartus Ii 8.1 Web Edition: -windows- Free Download

Issue: "This app can't run on your PC"

Issue: Simulation (ModelSim) fails to start

Issue: JTAG Server fails

| Requirement | Minimum | |-------------|---------| | OS | Windows XP (SP3) / Vista / 7 | | Architecture | 32‑bit or 64‑bit (but software runs in 32‑bit mode) | | CPU | 1 GHz or faster | | RAM | 1 GB (2 GB recommended) | | HDD space | 2.5 GB for full install | | Display | 1024×768, 16‑bit color |

Windows 10 / 11 compatibility: Mixed. Some users report success with compatibility mode (Windows 7), but USB‑Blaster drivers often fail. Not officially supported. Altera Quartus II 8.1 Web Edition -Windows- free download

Unlike the paid subscription version, the Web Edition is free and includes:

Unlike modern tools, Quartus II 8.1 Web Edition does not require internet activation. However, it requires a license file to enable the Web Edition features. Issue: "This app can't run on your PC"

FEATURE web quartusd 8.1 permanent uncounted 0123456789AB HOSTID=ANY \
     ISSUER="Altera Corporation" ISSUED=1-jan-2008 NOTICE="Web Edition" \
     SN=WEB-EDITION-81

Intel no longer offers most older versions directly on their main website without a subscription. However, version 8.1 is significant because: