Originally Posted by Doctor T
I have a computer running Windows XP (SP3). Recently, the computer was serviced by Staples and something was changed.
After typing www [dot] Google [dot] com I now get a message that says the Security Certificate has expired.
Norton Anti-Virus expired and I am in the process of getting PC Matic. But, I need a working browser to buy it and to run it.
FYI, I am sending this from another computer.
Firstly, you should not be using Windows XP as it is insecure and has lost support since April 2014. Try upgrading to Windows 7 or newer or buy a new computer.
What browser are you using?
Try Google Chrome or Firefox.
The problem may also lie with the wireless adapter, try reinstalling/updating the wireless adapter drivers.
Don't worry, there is no connection between norton expiring and an expired security certificate. You shouldn't be using Norton or PC Matic anyway, they aren't even that good, especially if you are paying for them. I recommend using Avast Free Antivirus or Avira Free Antivirus even though they are free. If you are willing to pay, you can get Kaspersky or Malwarebytes.
Note: You may also try using system restore to get to before your computer got serviced
Edit: lol u beat me carnage! It took me like 20 mins to post this.