Why won't the drill bit remove the screw?

I know this may be hard to troubleshoot online but

***The screw is NOT stripped.
***The drill and drill bit DO go together.
***100% sure the drill is not in reverse

When I go to remove the screw, the bit bounces off it, so I cannot remove the screw.
This happens even when j go as slowly as the drill allows.

The bit retracts into the drill and bounces off the screw...

What am I doing wrong?

I have probably near 100 screws that need to be removed and I will not do them all by hand

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JimminyChristmas · 56-60, M

The bit retracts into the drill? You mean to say that the bit is sliding backward into the chuck?

iamnikki · 31-35, F

@JimminyChristmas excuse me for not knowing the proper terms and for trying to do things myself. All I know is something is not working properly.
If you have no advice then find another post

JimminyChristmas · 56-60, M

@iamnikki I am trying to be helpful! The chuck is the part that you tighten, and the three little prongs close down on the bit. I was asking a question in order to avoid giving the wrong advice.