1, use the right screwdriver: first of all, make sure you use a screwdriver that is compatible with the screw head. If the screw head is a Phillips, then use a Phillips screwdriver; if it is a flat head, then use a flat head screwdriver. Make sure that the size of the screwdriver matches the size of the screw head, as this will provide a better transfer of force.

2. Use the right amount of force: when screwing a screw, make sure the force applied is appropriate. If the force is too small, you may not be able to unscrew the screw; if the force is too large, you may damage the screw or screwdriver. Try unscrewing the screw with the proper amount of force, and if you still can't unscrew it, try using slightly more force.

3. Use the proper angle: Sometimes, the screws may be stuck or deformed, making it impossible to unscrew them. Try to change the angle between the screwdriver and the screw, sometimes there will be unexpected results. Try applying some lateral force or rotating the angle of the screwdriver slightly to see if you can solve the problem.

4, the use of lubricants: If the screws have not been screwed for a long time, it may be difficult to unscrew because of rust. Try using some lubricant, such as motor oil or lubricant, and drop it on the screw to allow it to seep into the threads. Wait a while and then try unscrewing the screw again, it's usually easier.

5, the use of other tools: If the above methods are not effective, you can try to use other tools to unscrew the screws. For example, you can use pliers or wrenches to increase the power to unscrew the screws. But note that the use of these tools should be careful so as not to damage the screws or other parts.