Unfortunately, I don't know much about the problem as it was relayed to be through another person. All I know is that she can't load any *.edu site, and she's running windows. Any idea where I should start with this one?
Start by getting the problem clarified in great detail. For example:
1) What are a few specific sites she has tried? (If possible, have her type the exact site names.)
2) How precisely has she tried them?
3) What are a few sites that did work when she tried those sites the same way?
4) For the sites that didn't work, what exactly happened?
You have a terribly vague problem description. Your first order of business is to flesh it out.