A protective cover assembly used to cover and protect windows, doors or other wall openings for homes, office buildings, hotels, and other walled structures from the destructive forces of a high windstorm, such as a hurricane. The current form of the preferred embodiment consists of a high strength fabric covering an opening, such as a window and being supported by brackets, a rod and a bar. Once installed, the high strength fabric is stretched over the opening, through the use of a gears and ratchet assembly. The high strength fabric once stretched will provide protection from high winds and wind borne debris common in storms such as hurricanes. The protective cover assembly also prevents unlawful entries or break-ins of buildings. The high strength fabric is securely supported to the rod and steel bar that are firmly attached to the wall structure near the wall opening.