Try to reinstall it.
Or check out the minimum requirements
The OS should be Win 7 64, CPU Core i3-3250 3.5GHz or Intel Pentium G4560 3.5GHz / AMD FX-4350 4.2GHz, R.A.M -6 GB, GPU: GeForce GTX 660 2GB GTX 1050 2GB / AMD Radeon HD 7850 2GB and HDD:68 GB. I know some of my friends Destiny 2...