All Classic Client versions on Microsoft Operating Systems
When you renew your certificates your old certificates can still be present on the computer. Some applications can mix up old and new certificates which would lead to different errors: certificates expired, cannot find valid certificates, your card is not valid...
You can solve this issue by cleaning the Certificate Store on your computer:
Open the certificate manager
Find your old certificates and delete them
If you are not sure about which certificate to delete you can check the certificates serial numbers. Double-Click on the certificate in the Classic Client Toolbox, the Serial Number is shown in the Details tab.
Find the certificate with a matching Serial Number in the Certificate Manager and delete it.
Modifications to the operating system can lead to unrecoverable errors. Modifications are reserved to advanced users. If you do not feel confident we recommend creating a System Restore Point before performing changes.