Process of elimination. You could try things like format the drive and reinstall the OS and using a USB keyboard on the laptop to narrow down the possible sources. Keep going until you have your answers.
Canning dried beans seems exessive to me, though I love canning in general. Dried beans are well preserved as-is. Just soak the night before and cook in a pressure cooker to save time and energy.
I save the effort of canning for things that won't naturally preserve well. Fruits, jams, vegetables, pickles, meats, whole stews, tomatoes etc...
"Cheese".
Use real cheese you love and its even better!