I think I accidentally deleted all the certificates. Now everytime i open a site, the internet exploer will ask me if I want to "view content". Besides this, sometime a question will pop out, asking me if i want to preceed with the current site. My google chrome and firefox don't work too. I have not use any resources to try to fix it yet. My computer is Windows 7 home premium 64 bit,using IE 9. I find this really frustrating because the pop ups are really annoying and clicking it everytime i refresh the page make my patience run out. I hope there is a way to recover the certificate or add the certificate for sites I trust. It will be good if there is some certificate that I can download, maybe from microsoft. Thank you