Drywall Restore for Residential or Commercial Tasks. Photograph 2: Drive drywall screws about 1-half in. above and below the popped nail. Cover your complete patch with joint compound until the traces are camouflaged, feathering the sides. Select a putty knife appropriately sized to the blemish, and, if multiple layer of compound is required, be sure you permit each layer to dry fully between applications. If the crack extends by the seam’s paper tape, or if the tape has pulled unfastened from the wall, use a razor knife to cut the tape about 6 to 12 inches from each ends of…