If the disk she has is a factory restore disk then it will put the computer back to the day when she got it.
The order of the scans does not really matter as they do a different job.

Perhaps both of you should learn to practice safe surfing by following theses tips as a guide in order to now put yourselves in the same position again. Not saying that you will not be attacked this should minimize the risks.
How to Be Safe on the Internet (with Internet Safety Rules)