Screw that's loose and stripped.
Screw that's loose and stripped.
You're asking about a situation where the motherboard isn't coming out of the case. It sounds like you're struggling with a cross-threaded screw that's hard to remove. Try using a sturdy screwdriver, grip the stand-off firmly, and apply strong force. Make sure you have the right tool to avoid stripping the threads. Once they're loose, discard them as the damage is likely done.