If I were you, i'd stick with what LoyceV said and not even attempt transferring the coins for now. Please do not post any information you have online for now and do not trust anyone, even people on this forum that would try to send you private messages. I suggest that you buy your own little bitcoin and practice sending it to your electrum wallet first before attempting to move your dad's stash. :earning how to transfer bitcoins is easy. but do not risk making a mistake with some large amounts.