I tried to download FPGA quartus lite 18.1. But, I failed to install it. I dont know what is the problem.

Hi Dessy,

May I know the following info for better investigation:

Did you select the Window version the moment you about to download Quartus?,

Did you fulfill the requirement for installation like window version,memory, disk space etc.

Refer to this link and click system requirement for verification

https://fpgasoftware.intel.com/18.1/?edition=lite&platform=windows

Thanks,

Regards