sources rounded corners

staff,

How do I disable a font configuration and rounded corners via windows nsis?

What do you mean by "rounded corners"?
Is it some setting in Windows?

Yes, those configurations of sources and rounded corners that can change the properties menu of my computer at the performance.

I wonder if it has to change automatically via NSIS?

Your English is not easy to understand. I don't think I know the answer to your question, but you might get more response if you find someone to translate your question to English.