Can't he fire up at all

?
I'm not familiar with laptops, but with standard PC, I would put in another hard drive....disconnect original drive if you are not familiar with loading windows, then load windows on the new drive, put back original drive as a SLAVE drive....then get out the files you want. Be careful, though, just take ordinary files, as those viruses attack exe. files and if you copy programs over you could inherit the worm.
OR you could attach the 'bad' drive to another computer as a slave and get in that way. Again care is needed to not infect the other computer.
If you are not familiar with the guts of a computer, you should get help and not do it yourself.
I know its not possible all the time, but I have about 5 drives on this computer, and C drive is only used for the Operating system. All other stuff is on other drives, (Flight Sim) (Rfactor). So when a virus comes in and is fatal, I just wipe C drive and reload windows. Takes about an hour and I am up and running. If you are trying to get back Excel and Word files you should not have any problems getting them from a slave drive