You can scan a negative with a flatbed scanner by first separating it from the larger strip. Then remove fingerprints and dust from the negative using a microfiber cloth. After placing the negative at the center of the bed, align it correctly with the scanner sides. Place an A4-sized piece of paper above the negative. Remove the scanner lid (where possible) or lift it to illuminate the negative using a lamp. Start the scanning software and click SCAN. When it is through, crop the resultant image and SCAN again. Finally, save the picture as a GIF or JPEG file.