Deleting Smart Card Certificates

Smart card certificates can be annoying if you have to insert other coworker’s Common Access Card (CAC) into your system. A system can quickly fill up with dozens of users certificates that you have to scroll through. These can be removed via Control Panel > Internet Options > Content tab > Certificates > select certificates to remove > Remove

Or you can run this script:
Hint: Use this as a startup script to make your life easier

Get-Childitem cert:"CurrentUser\My\*" | %{Remove-Item -path $_.PSPath -recurse -Force}