Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
This MAY be possible. It really depends on your computer and its capabilities.
If your pc has a HDMI output port on it, then you can connect it to the tv that way, using the tv as a large monitor.
I can explain more about the necessary cord and settings, if you want to try that.
If you really just want to watch a dvd though, it may be simpler to just buy a proper dvd player. A standard dvd player can be purchased for about $30 these days, or a bluray player in the $50 range, even for a "smart" model that would give you extra features like netflix, youtube, etc.