123ayhappy

I am 65 and somewhat able with a pc but one of my daughters just gave me a problem. She has a dell inspirion 1525 with vista and one of her boys somehow put a code on it and does not remember just exactly what he used. I told her that I would try to fix her problem. In searching for a recovery software I found many and at different prices. Does anyone know of a very good one that is free and simple to use. Any help will be apperciated.
My emails are
[removed - psting email addys is a good way to attract junk to your account, and in any case answers should be posted here, unless from spammers]
Thank you.