Hello and welcome to Bleepingcomputer.
I am sure you don't exactly know what updates she installed, meaning if they were from Windows Update or not.
When you experience problems like this the first thing you do is go to your computers manufacturer's web site and look for trouble shooting suggestions.
First I'll provide you with the link here. http://h10025.www1.hp.com/ewfrf/wc/product...p;submit=Go%20»
Second, if you have a recovery disk that came with the laptop you should see if there are recovery options available that will restore things back to the way they should be.
Do you have a recovery disk that came from Hewlett Packard?
Here are some links I hope will help you. Drivers for Windows Vista information. http://h10025.www1.hp.com/ewfrf/wc/documen...product=3860437
Drivers for Windows Vista http://h10025.www1.hp.com/ewfrf/wc/softwar...product=3860437
Manuals for your laptop http://h10025.www1.hp.com/ewfrf/wc/manualC...p;sw_lang=&
Problem solver for your laptop. http://h10025.www1.hp.com/ewfrf/wc/documen...437&os=2093
Hopefully I have provided enough information to help you recover your system.
Again I ask do you have the HP recovery disk that came with the laptop?