I too had the problem with the expired security certificate problem. It was driving me crazy!!
I checked the date on my computer and it was 2007 so I updated it to the current year and all my problems are solved. I can actually go to my bank accounts now.

Completely unbelieveable. have spent 3 looooooooooooong evenings trying to download McAfee and staring at a blank window. Found this when i figured out that could be the problem no thanks to mcafee.

NOW ITS WORKING after changing the date.

THANK YOU TO THE PERSON WHO FIGURED THIS OUT AND FOR SHARING

I also faced the same problem. It is mere a date/time problem, killed me lot. Finally got the solution. This solution solves the problem.

THANK YOU.

All I can say Dave is OMG. What an easy fix. Can you believe something like changing the date could fix this issue? Unbelievable. I wouldn't have believed it if I didn't see it myself. I changed the year and BOOM all my heartache disappeared. Thanks a mill... and thanks for Google for finding you. Let's not forget KUDO's to the guy that figured this out and save us all. Thank-you.

Sincerely, Sincerely, Sincerely

Kim Knowles

Thank you, Thank you

My date was Jan 1st 2080... can you beleive that

Many Thanks

Hi Dave. Maybe you can help me with this problem. Whenever I try to go on a site that requires secure log-in, eg. bank, ebay etc. I get a security warning pop-up saying there is a problem with the sites security certificate. It says "the security certificate has expired or is not yet valid" and gives me options to continue yes/no or view certificate. I am operating Windows ME and IE 6, all updated and I also run AVG free anti-virus and spybot regularly. I have searched the web for answers to this and also asked several PPL including my bank's IT helpline. I have done everything suggested but still get the warning!

i have window 98 at business computer. now is saying invalid security certificate. how can i fix it

I agree with everything said over the years before me - please know that it STILL is helping people.

I haven't a clue why my laptop suddenly choose to go back to 1984 (!) - unless it's some kind of sci-fi conspiracy connected to the fact that it's 2010.

I would like to add however I enjoyed your classic, simple (and also) literary response.

In the 'Adventures of the Creeping Man' Sir Arthur Conan Doyle has Watson say, "If I irritated him by a certain methodical slowness in my mentality, that irritation served only to make his own flame-like intuitions and impressions flash up the more vividly and swiftly. Such was my humble role in our alliance."

I suppose even the best of us can be a little "Watsononian" once in a while....

Thanks Dave, add me to the list of grateful readers of your site - For some reason I was five and a half years in the past on my laptop??? How did that happen? Needless to say I can now get into aol once more, I was convinced I'd been hacked!!

thankz men u are so great...!!!

I've had this problem for a couple of weeks. I checked the clock and found it was set at 2001! Reset it to 2010 and, Bingo, fixed! Many thanks.

U ppl are the best. . Rhanks a lot . . no one could solve my problem. . Thanks a loooooooooottttttt. . god bless u . .

umm..I STILL NEED HELP !!

I can't get into my gmail.

My bios clock, and the windows 7 time and date are CORRECT.

is there a virus that would cause me to get a
"security certificate invalid" kind of response just for trying to get on gmail.com ???

i need help..there are a few CRUCIAL reasons why i need to get this fixed on get on gmail from my comp TONITE !

I'm thankful to you, DAVE. That's great solution. For a week, I've failed to sign in Yahoo to see may mails. Whenever I hit 'Sign in' warning pop up Security Certificate expired and not yet valid. Folloing your post, I corrected date/mont/year and computer a'clock. It works perfectly. Now I can sign in as usual. Great thanks to you.

Just worked for me, like a dream!! Stupid clicked 'OK' when i was mucking around with the date/looking into the past.... forgot to update it back to 2010 (!) ... thanks for the solution

HEY GUYS I JUST WANT TO CLARIFY FOR EVERYONE:

1: SECURITY CERTIFICATES ARE DEPENDED ON TIME ZONES

2: SERVERS ALL AROUND THE WORLD HAVE DIFFERENT TIME ZONES

3: SOMEONE CAN FIX THIS AND MAKE ALOT OF MONEY CALIBRATING SECURITY CERTIFICATES TO TIME ZONE PRIMARY KEY IN SERVERS AROUND THE WORLD, I DONT HAVE TIME

Everyone....hello....They are a few post on here that have not been answered....I see that most of the fixes have been done by updating your date on your PC...but there are a few people who's time and date are correct such as mine, and i still receive the error....when i look at my cert it has expired....and try and re-new it and it will not rene...any suggestions.

Wow, just yesterday I set my computer back 2 years because of a damned program and I forgot it instantly.
Thanks a million times!

hi.. its really a miracle although its a small problem to be solved.. actually today my pc been formatted n i forgot to set date n time.. hey its really a MIRACLE man.. thanx ... thanx a lot dave

I recently bought a PC with Win7. I could get on my company's websites, but yesterday I kept getting cert expired, both with IE7 and Firefox. I remembered that the PC just ran an update from Microsoft....lousy updates.
Checking can be disabled, but PLEASE re-enable after you go to your known website----it's for your protection.
In IE, go Tools, Internet OPtions, Advanced. Scroll down to security and uncheck "check for pub cert revocation", and uncheck "chk for server cert revocation."
In Firefox, its Tools, Options, Advanced, Encryption, Validation and uncheck "use online Cert........"
PLEASE turn them back on when finished. Hopefully Microsoft will fix it with another update.

OMG... you guys are amazing! I've been trying to figure this security thing out for such a long time! Thanks for all the help... my date was set back to 2003!!

OMG...I was just having the same problem with the security certificate and yeah my date was also set back to 2003!! What a quick and easy fix for a change THANK YOU!!!!

You are great man! Thank you so much! :)

For those whose Date/Time was not an issue:
Check your host file under C:\WINDOWS\system32\drivers\etc\host
Mine had all the google sites listed there and after deleting those it started working fine.

Thank you Utanko13....
I did exactly as you said and voila....Gmail webpage is now opening.....

This is Bull i have the same problem date is set right on PC in both Vista and in Bios. problem is on firefox and IE and an ftp style program. If I set the pc to the WRONG DATE ie yesterday everything is OK. Problem also replicates on an identical PC with different software installed ITS NOT THE DATE

I want to thankyou for the help i just google a questing and here is the answer thanks again

Thank you very much for the information... google has all the answers.

Thank you!!! Thank you!!!! Thank you!!!! I just came back from being away on vacation and have spent the last 24 hours scanning everything trying to find why I have this same problem. Found this article, checked my date and somehow it had re set to 2001--- how I don't know but re-set the date and everything is fine now. WHEWWWWW!!!!

Let me add my thanks. We had a power shutdown in Toronto yesterday and it probably is responsible for screwing up the time on my computer.
Scared the hell out of me this morning when I couldn't access my email because of expired certificates. Fortunately found your answer and found I had traveled to 2023. Thanks again

ingenious

I just fixed a similar problem with a client who claimed that the solutions here did not work for him.
He got the error every time he started Firefox (3.6.6) but did not get the error with IE 8. The date was good and both programs were up-to-date. He could still use Firefox after canceling the message. He used the "Plain Old Favorites" add-on in Firefox in order to access IE's favorites from within Firefox. The error referred to https://access1.sbc.com which is the secured AT&T site.
There, as plain as the nose in front of your face, is the clue, Dr. Watson. I started IE 8 and selected access1.sbc.com from the favorites. While it was displayed, I removed that favorite from the list and restarted Firefox. The error was gone. I put the favorite back in again through IE 8 and the error came back in Firefox. So, I copied the address from IE 8's address bar into Firefox.All of a sudden, Firefox came up with a screen to walk me through storing an updated certificate in Firefox. The problem is now gone.
This may not be the solution for you, but it is not difficult to test. Check your favorites and/or bookmarks for the website listed in the error message. If you find one, delete it then try to access the site directly.
Hope this helps someone.

Ron, D 'n R Computer Services (WV)

Fantastic!

yea went through all the security settings. No joy.
"let's google it" said Natalie, my other half.

Lo and behold there's the answer.
so....

1) thank you you're brilliant, who would have guessed time and date?
2) google is brilliant for having the ability to help solve problems that do your brain in.

what a relief!

I had the same problem for 2 days its pissed me off
and im getting crazy looking for the solution when i check my time and date it was set 4 years ago and when i correct it. presto problem solved
thanks guys!!

i feel so stupid :P haha such a blatant problem must of got the day and month mixed round thank so you so so so much :)

Thanks a lot brother.

i have just change of my pc date n time.

now it's working good.

once again thanks bro....

Many thanks.
I don't know how, but the date was changed.

thanks so much, i have been stuffing arpund with this issue for months now

Hi there, just like everyone else I have been dealing with this security issue for 2 days and I think it messed up my password getting into Face Book cause I tried to get in and it said it was wrong and I reset again and again til it took. also had to get new key for anti virus, I was trying to go into Paypal to update fund source and the message came up so after some dismay I finally did a search like you all did and checked the date and it was exactly 1 year ahead, I went back in time and poof fixed, I don't know how it happened but can't rule out my 4 year old playing games at Legos.com Thanx for your help!

that was great !! that security certificate expired is killin' me! changed my date and time and now its working.. thanks a lot..

thanks, dave.
don't know how it happened, but found i was living back in 2006.

gary again!
i don't know why, but yesterday and today when i turned on my computer, the date was still in 2006, and yes, i did click apply changes after changing date. anyone any ideas??
thanks,
gary

thank you very much.
this simple solution does solved my huge problem.
:)

You are super cool, thank you SO MUCH for answering this question and posting the fix solution. I changed the date and it works! Thanks Dave Taylor!
All the best to you and your family,
Kris Kemp

Correcting the date on local machine fixed the issue.
Thasnks,

genius. Thank you so much. Wish all other postings on other sites just pointed here. So simple and so the answer.

I had the same problem. correcting the Date/Time it resolved the issue, Can some one tell it This s bug or someone tried to hack the computer

Damn Google is good. First site I got with this "getting certificate errors on most sites but nothing wrong with certificate" Date set to 2001 instead of 2010.

Thank you so much! Definitely been working on this for several weeks and then I decided to google a solution! Thank you

Nope, the date's perfectly fine, 10/4/10. I tried opening FB on google chrome, forefox & IE which i never use any more. Nothing worked & every time it said that there was a certificate error & a big red screen came up on chrome like DON'T DO IT lol. So what's next?

I've been receiving the invalid security certificate warning whenever I was about to open my emails but I just closed the dialogue box and ignored it. But, it was not until yesterday when I was about to open my email and coudn't make it due to the problem. I got confused. I tried to find the information about how to fix it and I FOUND YOU. I checked my time and date setting and OMG, it was set for 8 years in the past. THANK YOU very much for the SIMPLE and EFFECTIVE solution.

On one of the games I like to play there comes an "error loading bitmap Data/graphics/title/snapshots/lady_pic_-36553975.png ? What in the world does that mean? Can it be fixed somehow? Hope you can help. Thanks.

Thank you, I too had this error, then i noticed that the date and time were incorrect, so I corrected and everything is working fine.

I was having the same problem of secuity certificate error. Fixed the date and its gone.
Thank You

Elemental my dear watson ! HAHAHA wrong date here too...

FOR ALL HAVING THIS PROBLEM, CHECK INTERNAL BATTERY VOLTAGE (USUALLY 3 VOLTS, BATT TYPE: CR2032 OR SIMILAR) SOMETIMES A SMALL RECHARGABLE BATT IS USED ONLY TO KEEP CLOCK/DATE GOING WHEN YOU TURN OFF THE MACHINE.

OF COURSE WHEN THE VOLTAGE IS LOW... CLOCK AND DATE RESET TO MANUFACTURE DATE/TIME AND YOU BECOME TO GET CRAZY WITH "INVALID CERTIFICATE MESSAGES" AND MANY OTHER DATE RELATED.

THIS ALSO COULD BE CAUSED BY A LINE VOLTAGE FLUCTUATION (BROWNOUT, PEAK, ETC) AND BATT A LITTLE BIT LOW.

THANKS TO ALL !!!

Sshhhh, I struggled with this problem most of the day today and was preparing to go all command line on it's ass...boy is my face red.

THANKS. haha, had changed my date by mistake.

I had the problem after my wife moved my computer and unplugged it, So, the battery is probably shot.
I also wanted to warn others in the area in which I live; when you set your time zone I have had problems with the choice "Indiana Eastern". I set it for Eastern United States and checked the box for "adjust for daylight savings." Hopefully that will cure the problems I've had with the expired certificates and the time changing by itself. Who know's it's Microsoft.

Thank you Dave my problem is resolve,i am delighted

Thank you!! An info site that actually helped! it was indeed the date/time thingy, PC reset itself after a powercut. You've saved me a good deal of teeth gritting and swearing.

Many, many thanks. Have been trying and trying to find a solution to the "expired security certificate" message I kept encountering. After searching for help on Google I found your website and, hey presto, the date/time solution worked.
FAB - U - LOUS!!!! Can now continue to order Christmas presents from Amazon!

Many thanks, Val of Worksop, Nottinghamshire, England

Dave

Thanks a zillion for fixing this up for me.Been pestered for almost 2 weeks now and ended up blasting Dell (for the faulty OS) and Microsoft (for faulty IE).Jesus Mary Joseph ! it din't even strike me it could also be such a small issue.

Cheers

my Hotmail certificate expired how do I get another one?

PAST TWO DAYS I WAS TRYING TO GET ANSWER. I DID NOT USE INTERNET FOR LONG TIME. SO THIS WAS MY PROBLEM.
THANKS.

thank you so much...i have visited so many website to sort out this problem, but, none of that work, but, this has solved my whole problem..really thanks.

Jeee thanks for posting that info, I thought I had to put my LT to rest.. Who check the set year on a computer.. wow, mine was set to 2031..lol and thanks to you, now everything work out fine... it was like a peewee herman problem, haha

dave, that dude is the dude of the day. my macbookpro was in 2001.

Dave,
Thanks so much for leaving up the answer regarding an invalid/expired security certificate message and kudos to the fellow who solved this puzzle! It had me stumped for 2 days. The date on my laptop was set to the incorrect year also... 2010. Duh... lol.

This is just great! I tried so many options, uninstall, install all of the above: firefox, IE,Safari,Google chrome...Went thru all preferences, security option,failed , failed failed, failed! ....it was just that the freaking date was wrong!That is it....as simple as it is!it is working now!
Thanks!

Worked for me too - thanks Dave!

Oh, Thanks to your bloggers I got the solution to the expire question. My date of my computer was also wrong. Thanks you so much.

Thank U for the answer.. In my system it was showing as 2030. When I changed back to 2011..everything became normal....

Just wanted to add one more "Thank You" to the list. This issue was making me crazy!

well thanks a lot forthe inf , i did everything but nothing jsut a simple date changing can makes a difference ,'once again thanks a lot

I found it.

For windows do it: first put windows CD/DVD into DVDRom and then go to ... Start > cmd (administrator) > sfc /scannow
and then reboot

this commend fix missing DLL file. sfc (System File Checker)

THanks guys! I had changed the date for next month andn hence my VPN got logged off and I was not able to re-connect. Read this resolution and suddenly remembered that I had changed my machine's date. Set the date right and I am back on work.

Thanks....

Oh Dave! We just got 2 refurbished Dells; the first one worked great. The second one arrived also UPS but 'invalid security certs' kept popping up so I couldn't read my email, check my bank, pay my mortgage and other bills, etc. I mean, really IMPORTANTE stuff. I read this article, checked the pc date, and sho'nuff, it was set to Feb 23, 2006! I fixed it and no more problem-o. I am SO-O-O grateful. All week we've been tortured and chagrined trying to deal w this. I wish I'd clicked on you first to fix it in like 5 seconds!

wow thank you so much! i work as a IT tech and cant believe i missed that! jeeze im dumb haha! well at least ill never make the mistake again. looks like this helped a lot of people, well thanks again!

thank u so much... it worked for me too:)

@ Abhinav - maybe it was the future you who changed the date.

OMG. Thankyou so much, I downloaded a dodgy program a day before this started happening and thought i had a virus.. I had just formatted and reinstalled for that exact reason. Even my 2 IT support employed siblings said I was infected. I ran hundreds of virus scans, then found yoou! Thanks so much! <3 My date was set back in 2002.. so yeah!

OMG!! THANK YOUSO MUCH.. IT WORKS :)

ThankYou :)....This problem troubled me for long.

worked for me :) .
thanks a lot!

Just today I started having this same problem and it was making me crazy... turns out I accidentally changed the date yesterday. THANK YOU!!

Thank's for reminding me to keep my mind open. Such a simple solution but as humans we always look for the coplex solution. THANK YOU

Sir,

my Hotmail certificate expire i have want new ssl file continue phasing problem !!

kekekekek oooooooohhhh yeeeaaaaah .
after suffuring beeing unable to enter the gmail and hotmail, I discover that the date in my PC is 12 years older the current . OMG Because I have changed my new screen card.

you are the grate man dave.............i thought you are kidding me but it,s worked

Thank you!! My parents had the same issue, where the security screen was popping up on every page of banking site. This solved the problem!

Who knew? Thanks so much, this solved my problem. I was checking a date on the calendar today and forgot to set it back to today.

I to have a problems with security certificates. Unlike all the thankful people above my time and date is correct. l have tried the few tips above and nothing works. This problem started after downloading explorer 8. Any help would be appreciated

Thank you! I just stumbled across the solution, but didn't realize it until I saw your postings here! I had security-certificate warnings popping up on all sorts of sites. And, I noticed my date/time/year had changed. I fixed the date/time, but then went googling for the solution to the security-cert problem, found this site and realized I had already, unbeknownst to me, fixed it!! It's working fine, now! GREAT to find such an easy fix!

Nothing wrong with my dates. My "Trusted Root" and "Trusted Publisher" and "Trusted Intermediary" certs are all courtesy of Windows Update.

I can delete them as often as I like, or place them the expired in 1999 etc and "Fraudulent Microsoft" ones in the Untrusted store...but they'll all find their way back into my Trusted Root.

I actually think I know how and why. I'm pretty sure it involves something to do with the 40 or 50 "Run Without Permission" ActiveX add-ons in IE8 and 9. On my systems, all set by default to Approve every website in the world.

But keep celebrating your inability to see a permanent clock clicking over in the corners of your screens ;)

FANTASTIC. I WAS CHECKING FOR AGES AND THOUGHT MY YOUNG CHILD HAD DAMAGED MY COMPUTER. IT IS SIMPLY THE DATE WAS WRONG. THANKS SO MUCH

Nice dude..thanks for the solution...

thank you thanks a lot.. I got pissed off trying everything.. but it didnt worked.. thanks a lot mate.. DAVE.. god bless you.. :)

Thank You....

I was having the same issue, but my date and time were correct. Just for the heck of it, I tried changing the date (to a false date) and then changing it back (to the present) and it worked!