OK, excuse the French $%^$£ Microsoft, the secondary PC will not let me remove the pin as it is secured with MS hello
Somehow when I set it up using my private MS account it has somehow attached it to my business account and cannot remove it. I created a local account and setup the password and added it to the security and yes it works
. So, it looks like it is MS Hello that is causing the issues with the unlock, maybe something for future development. Thanks for all your help anyway.
Regards,
Dave G.