Programs that causes problems with X.509 certificates

• Sendori
• Purelead
• Rocket Tab
• Super Fish
• Lookthisup
• Pando

Additional information regarding SuperFish is found at : https://forums.lenovo.com/t5/IdeaPad-Y-U-V-Z-and-P-series/Lenovo-Pre-instaling-adware-spam-Superfish-powerd-by/td-p/1726839

These are specific malware programs that can cause problems with certificates, in any browser and mostly for redirects from http to https sites.

Each of these programs can be found in the Programs and Features list in Control Panel. Highlight the program and uninstall.
Restart the machine and test the certificate again at: http://web.mit.edu/certificates/test/.