I’d start with sorting out the graphics driver first.
If you indeed have a GT740M and you have installed the proprietary Nvidia driver then you should in theory also see the right name.
See if you have access to the Nvidia settings panel. You can start it with nvidia-settings in a shell or find it among your desktop settings as an application. It should open it and tell you exactly which driver you have and your hardware identification.
Then I’d check if the Nvidia driver isn’t in conflict with the open source driver nouveau, which I’m guessing may already explain what you’re seeing.
Check here for details:
Regarding WINE should you use WINE 3.0 or newer and ignore the old versions. Somebody else had a problem with WINE and his Ubuntu 16.04 and I’ve given a description of how to install WINE when directly taken from WineHQ here:
You’ll find links to the Xenial files at the bottom of my comment. Let us know how you get along.