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I'm on windows 7. Every website is showing untrusted security warning. I tried every browser that I have. I tried using https. This is extremely odd, it never happened before, well it could happen to 1 site or 2 sites, but now it's happening to every site.

Say I go to google, and it says, ""do you accept the risk?" and i said yes, the second time I go to google, it will ask the same question.

One small note, I don't know if it's related to the issue or not, I'll mention it anyway, I changed the harware time on Linux and now windows clock is wrong, I don't know if it has anything to do with the issue.

Another thing that I notice and I don't know if it's related to the issue or not. I'll mention it too. some websites aren't loading correctly, for example, I use ad blocker

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I have been a user on for more than 3 years and never seen the error "This webpage is not avail"

Also, the internet is extremely slow, I don't know if it's related. And lastly, the certificates seems legit, here's google certificate

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I can't test on linux because it doesn't have internet, the wifi drivers aren't working – Lynob Dec 8 '13 at 19:37
Check if your pc has the correct date and time set. – ZippyV Dec 8 '13 at 19:47
@ZippyV oh it was messed up, it was on august, is it the reason? – Lynob Dec 8 '13 at 19:49
Yes, Google's certificate is only valid from 11/20 which is after August. – ZippyV Dec 8 '13 at 19:51
@ZippyV ok thank you Sir, stupid issue! I was thinking of deleting it but I'll leave it there for future users, my silly question could be useful for others – Lynob Dec 8 '13 at 20:01
up vote 3 down vote accepted

Check your system time. Certificates are valid only for certain periods of time. If it was just one site, I'd be suspicious. Multiple sites? Either time/date, or malware

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