Entire laptop screen freezes on the internet?

[785]

Alright so, whenever I go on the internet it takes a few minutes, and then the screen freezes and I cannot do anything. Notice that the entire computer freezes and not only the internet.
This had never been an issue before it just happened from one day to another. Since I didn't have any internet connection at home I used to use my IPhones Internet on my laptop and I thought it might have something to do with that, but then it did the same after I bought a subscription, one of those USB Internet plugs. When I use the internet at my school this doesn't happen. I really don't know much about computers, I ran a virus scan but I don't know what to do, so I would really appreciate some help. Thanks!

[Sazzad]

repair your laptop

[Nadja]

Sazzad, I would appreciate it if you would be more specific.