STOP ! DON'T TURN YOUR LAPTOP ON ANYMORE IF YOU HAVE IMPORTANT DATA ON IT !
Well... sadly when a Hardisk (for laptop or the 3.5 inch desktop/workstation) is being dropped, moved, is vibrating for various reasons as an earthquake, they get damaged, in some cases even if they have an G-force sensor which is parking the head of the hardrive.
This laptop has been dropped from a couch onto a hardwood floor.
It is not recommended, and advised to move the laptop in the house, change position while is working/powered up, as the hardisk can get corrupted.
So, I assume that the hardisk from your daughter laptop is with an traditional hardisk, which has mechanics in it and now is having some FIZICALLY BAD SECTORS ON IT.
I assume the hardisk is NOT an SSD (a hardisk made like an usb disk).
So, the bad news is that IF you have IMPORTANT data on it is possible that it will be LOST but, sometimes RECOVERY of the Data is Possible, or a part of the data.