lots of certificate errors on chrome, firefox and IE help please

[dobi]

Hi. I am new here. I am having problems loading lots of sites like amazon.com or even doing some searches resulting in certificate errors.
For example, i can reach amazon.com.mx but not amazon.com
problems in any installed browser on pretty much every machine. All running win7 most x64
Any help would be appreciated.
Thanks

 

[townsbg]

Have you checked the date and time on your computer? How to Fix a Windows Security Certificate Warning | Small Business - Chron.com

 

[dobi]

Checked date and time.
Googled for hours and folowed several steps from deleting cookiies, cache, browsing data, resetting browser and internet options....untill I ran out of ideas.

 

[townsbg]

Well it not allow you to accept the certs? Please explain the errors.

 

[file3456]

Running an anti-virus? That'll jack things up for you in the certificate department.

You say pretty much every machine? What's different in the computers that do work?

 

[Alejandro85]

What do the certificate errors say? Can you post the detailed message you're getting?
These will say the real reason of why they're rejected, and hint on a solution. Otherwise we're just guessing.

Running an anti-virus? That'll jack things up for you in the certificate department.

Nowadays having an antivirus installed is more a security vulnerability rather than a solution

 

[RolandJS]

"Nowadays having an antivirus installed is more a security vulnerability rather than a solution." Alejandro85
Coming from you -- your words are golden apples upon a silver platter. Please tell me more!
On my two Windows 7 Pro laptops at home, I have Malwarebytes AM, SUPERAntiSpyware, SpywareBlaster [host file]. Because I do not run into certificate issues, please help me learn more about this problem, thanks! BTW, I do have W7-MSE & W7-WD enabled as on-demand scanners only.