If that doesn't resolves the issue, Please follow below steps to reinstall CC.
Run Adobe Creative Cloud Cleaner Tool to uninstall CC completely.
Later, You can use the following link to install CC again : Download Adobe Creative Cloud apps | Free Adobe CC trial
Ok, Thanks kanikas 100, I restarted the PC, and that seems to have cleared
it. Maybe it needed to start up with the security in place.
Thanks again - lightning response