If you think it's been used when you bought it under the assumption it was new then go straight back to them and get a replacement or refund. Don't waste any time, it's an expensive device. If things are missing from it don't wait any longer or they'll likely start questioning your veracity and deny you a replacement/refund.
Do the troubleshooting after you get a replacement.
Also, the specs you listed aren't your computer specs. They seem to be taken straight from a webpage listing possible upgrades.
And just an FYI, the 1050 is below the minimum requirements. I believe the minimum is a 960. The plain old 1050 is 22% slower than a 960. I have a feeling you paid a little too much for that laptop... On your next purchase I strongly suggest asking around on trusted forums for opinions and bargain hunting. I absolutely hate seeing people get sucked in on "gaming" laptops that are not gaming level by a long shot and paying the price of a powerful desktop for an underpowered laptop that's only really good for games released in 2006 and web browsing.
i7 5820K @ 4.25GHz | RTX 3080 Ti FTW3 | Gigabyte GA-X99-UD4 | Corsair DDR4 3000 32GB | Corsair HX 750W
SSDs: Intel 660p M.2 2TB, 3x Samsung Evo 1TB | Startech PCIe 4x USB 3.0 | Startech PCIe 2x USB C 3.1 gen2