there is a problem opening facebook account in pantium 4 window xp secuirty certificate not valid? Tags: Windows XP Facebook Certificate Last response: October 14, 2013 9:56 PM in Windows XP Share vwirlessptclcom October 14, 2013 3:22:05 PM i use vwirless ptcl internet when i open face book account or any other web site a security messege apears countineus that certificate not valid i use pantium 4 with window xp. More about : problem opening facebook account pantium window secuirty certificate valid kenrivers October 14, 2013 9:32:22 PM What browser (Internet Explorer, Google Chrome, Firefox, etc.) are you using and what version of the browser are you using? Mysticalsam October 14, 2013 9:56:54 PM The problem is with the system date. First Check your system date. If it is resetting to 2006 or 2009 each time after reboot "Change your CMOS battery." Can't find your answer ? Ask ! Publish Read discussions in other Windows XP categories Configuration Customization Drivers Security Video !