To download and uncompress all files requires 4 Gbytes of free disk space. Installation requires an additional 5 Gbytes of disk space. You can delete the 4 Gbytes of download and uncompressed files from your hard drive after installation is complete.
Beginning with version 5.1, the Quartus II Web Edition software no longer supports Windows NT.
If the design includes VHDL or Verilog code, you can use third-party synthesis software from Mentor Graphics®, Synopsys, or the integrated VHDL and Verilog synthesis included in the Quartus II Web Edition software.
Support—The Quartus II Software Support page can help with questions or problems that are not answered by the information provided here or in Quartus II Help. If you have a question or problem that is not answered by the information provided here, contact Altera Applications through the mySupport website.