Im trying to remove these window brackets from my wall. The brackets are bound by 4 screws. Im not sure what type of screws they are. They were painted over, so I'm not sure the type. The equipment I have is a RYOBI CORDLESS DRILL, DEWALT Drill Bit Set & DEWALT Screwdriver Bit Set. I tried every drill bit with my drill, to see if I could reverse the screws out. No dice. I used my array of screwdriver bits with a screwdriver, couldn't get none of the screws out. Im a novice when it comes to diy fixes in the home. Looking for solutions with list of equipment needed or technical guidance if needed.