Use Windows UpdateBefore hunting for manual files, let Windows do the work. Plug in your EZ100PU, go to Settings, then Windows Update, and click Check for updates. Check the Optional updates section under Advanced options to see if a specific "Castles Technology" or "Smart Card Reader" driver is listed there.
: Windows 11 may install a generic standard CCID driver automatically. ez100pu smart card reader driver windows 11
If your smart card reader is not recognized or fails to read certificates, try these common troubleshooting steps designed for Windows 11. 1. Check the Windows Smart Card Service Use Windows UpdateBefore hunting for manual files, let
Identify the device:
Go to the official ACS website (acs.com.hk) → Drivers → Smart Card Readers → EZ100PU → Download the latest (typically ACS_EZ100PU_Driver_v6.5.2.8.zip ). go to Settings