drywall screw pop
If you're going to drive the screw up with a hammer, it will likely tear the face paper on the drywall which will cause the screw to pop again the first time you get a little "seasonal" lumber movement or someone happens to push/lean on the spot. You'll need to add another screw an inch or two above or below the existing screw (or both) to hold the drywall tight to the framing. If you have some of the original paint, the walls were painted very recently, it's a fairly neutral color paint, and probably a few other variables, you MIGHT be able to touch up. Not likely though......
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