Old revisions Add to book Export to PDF Fold/unfold all BioStar 1, Card How to delete cards registered to a user You can delete cards registered to a user on the BioStar client. 1. Go to the User page, choose a user whose cards you want to delete and click the Card tab. 2. Click Card Management, type 0 in the Card ID field and click OK. 3. Click Apply to complete the card deletion process. You can see that the card has been deleted in the Card Issue History list.