Did you check out the recommended TW3 settings from Geforce Experience ? Your computer isn‘t strong, so I‘d be very very careful with the ingame setting. For example, limit the framerate and disable stuff like hairworks. Lowering the resolution could also be a good idea... and so on.
Also you should probably disable all unneccessary apps before launching the game (especially apps with overlay) like Riva Tuner, MSI Afterburner, Uplay and so on.
Sometimes older GPU driver versions (like 399 for Nvidia) work better for this game.
Crashing the computer sounds like you might be overheating your PC. It would be good if you could monitor your CPU and GPU temperatures while playing and report the temperatures here (for example with freeware like speedfan).
Hairworks is better turned off on this computer and I wouldn’t set anything on ultra. In your case, it might be best to not go at all above medium/low. And you really should limit the framerate to 30. I’d even recommend lowering the resolution a bit, 1920x1080 can sometimes be demanding for a PC like that.
If your CPU is overheating, that might get better with much lower settings. If that doesn’t work, a new thermal paste could be another idea and you could check if your CPU cleaner needs some cleaning...
You could paste a link to something like pastebin, or just copy-paste the log and surround it in "Spoiler" tags.
*Your logs here.*
But there is definitely an issue with your PC. A restart means that some part of your config is crashing Windows. Most often, that's due to heat, as @devivre mentions above. Borked drivers for your GPU can also be a culprit. A Windows Update could have introduced an issue (quite common if you upgraded to a new OS, as opposed to wiping your drives and doing a clean install of Windows.)
A game will only crash back to Windows if there's a bug or something. A hard-crash, hang, or system restart with error logs is usually caused by the driver / firmware / OS. A system restart without error-logs or a complete power-down will almost invariably be a hardware issue.
Just because other games might work, doesn‘t automatically mean we can exclude the possibility of overheating. Some games stress a PC more than others. As someone who had that issue once I can tell you this.
Certain areas in TW3 are more demanding than others, so that still doesn't rule out overheating for me. I still do recommend experimenting with lower settings. And don't forget to close all nonessential background applications.
In case you still don't want to investigate that idea, you could also install older GPU drivers and see how that goes (I already suggested version 399, for example).