1. Find the cause.
2. Fix it.
#1 might be the most difficult. So please tell more, like
- when does it happen
- what error message is given
As to getting his data off (that few data he forgot to backup): buy an hard disk enclosure, put the hard disk in it and use another machine to get to the data.
my friend's laptop is 2 years old and he got "blue screen of death message" how can we fix it, and he wants some data on the laptop,