How do I get rid of HPDriverCore.framework

I un installed the printer and the re installed as suggested and all is working now Many thanks

Check for HP driver update in System Preferences->Software Update. HP canceled their security certificates in error/accident. They have issued new driver updates via Apple’s Software Update. If an update does not show up you can go to HP’s website to download and install the latest driver package for your HP printer model. Another method is to remove your HP printer from your system via the System Preferences->Printers&Scanners panel, then add it back in.

I have just started having the same problem

Porkya wrote:

I un installed the printer and the re installed as suggested and all is working now Many thanks

Great to hear that! Excellent!