entitled -- to give (a person or thing) a title, right, or claim to something

I spent my money, I can be entitled. Besides this isn't just about libdvdcss. There are many withdrawn features and anti-features included.

No, you didn't. You spend $0 on Windows 10.

You spent money on Windows 7 and you can continue to use that without restriction.

You absolutely are acting entitled for something which is free.