Please capitalize where necessary: child-friendly, pets allowed, non-smoker, internet, tv
A: Child-Friendly, Pets Allowed, Non-Smoker, Internet, TV

Please capitalize where necessary: incomplete download: many times, we download winrar file from internet and you will not able to extract it if the winrar file is not downloaded properly.
A: Incomplete Download: many times, we download WinRAR file from internet and you will not able to extract it if the WinRAR file is not downloaded properly.

Please capitalize where necessary: this is now only the case if the "case sensitive" option is not selected.
A: This is now only the case if the "Case sensitive" option is not selected.

Please capitalize where necessary: he had already published a major work on control of systems controle optimal de systemes gouvernes par des equations aux derivees partielles in 1968 which investigates deterministic optimisation problems involving partial differential equations.
A:
He had already published a major work on control of systems Controle optimal de systemes gouvernes par des equations aux derivees partielles in 1968 which investigates deterministic optimisation problems involving partial differential equations.