HI i just installed the Quartus prime lite and it asks me to install device support i have downloaded the device file but when i click on device install option in tools menu it says device installer cannot be launched for some operating system.

Hi Ahsan,

Go to Window start menu --> Type device installer --> select device installer(Quartus Prime v(your version) --> pop up window and click yes --> select your .qdz file location --> from there follow the instruction to install the device

Thanks,

Regards