What is your browser which you're using? If you've downloaded browsers software like: Chrome, Firefox, ...etc Yes, you should uninstall all of them then uninstall your browser too. After that, restart your computer then reinstall browsers, I think that you can solve your problem with this solution.
Good luck
Positive: 63.636363636364 %
Answer #2 | 26/12 2013 12:41
Go to your control panel and choose uninstall a program. You can uninstall any unwanted installed program.
Positive: 61.538461538462 %
Answer #3 | 26/12 2013 12:38
Maybe try System Restore and go back to when it worked
Start > type in 'System Restore'