Sorry, but Solidworks is not free software, nor is there a free version. If you find someone who has free Solidworks, then you have encountered a thief. Hopefully, you are not a thief and will stay away from free Solidworks.
I you want a free CAD then
for 2D search the draftsight
for 3D Then search for = Free CAD, On-shape, Space claims, Fusion 360 for hobbyist
well there is free version of SW, it's called trial version:)