No one can ever give you a 100% not this can’t happen - if you seek that kind of assurance you unlikely to get it anywhere. No one can say what might happen tomorrow as that is unknown.

The best advise anyone can give you is to have a robust backup and recovery strategy; regularly backup your system (drive imaging software) at least weekly, so you can recover from such eventualities.

Plan for the worst and hope for the best, as they say if you fail to plan then you plan to fail.