When I open the quartus it prompts me a window "Evaluation Mode" when I select the 4th option of specifying the licence file it works. But it prompts the same message again when I restart.

[nninj]

I am using a purchased Standard license

[AR_A_Intel]

Could you help check your LM_LICENSE_FILE environment setup. As part of the license setup process, you need to specify the location of the license file using the LM_LICENSE_FILE system variable. You need to set your LM_LICENSE_FILE environment variable to point to the license that Intel provide. c:\intel\license.dat or something similar

You can also to link below for more detailed instructions for Specifying the License File with the LM_LICENSE_FILE or ALTERAD_LICENSE_FILE Environment (page 14)

 https://www.altera.com/content/dam/altera-www/global/en_US/pdfs/literature/manual/quartus_install.pdf

You can also refer this following youtube for license setup. https://www.youtube.com/watch?v=Ob9ei5lMgGE

Regards, Ray