a couple of days go i got a bad virus and had to reinstall windows

now anytime i want to go on youtube, or download a file it stops downloading after a bit

it varies in time, some ill get 50% through, others 5% then it will just stop, the progress bar will still be there but it will just freeze

is there something i need to configure, or something ive missed as its doign my nutt in cus i cant watch anything on any type of youtube style site or download any files i want

cheers