Thanks Jock - sorry for delay in replying - I had a few laptops to fix so got waylaid.
Anyhow - I tried some of the things that link referenced to - it didn't specify Crypted.gen - Perhaps Crypt.XPACK.Gen is related?
In any case nothing worked.
How hard/safe would it be to reset laptop. Or that too extreme? My daughter only has some word docs and bookmarks that are easily copied.