To ensure the driver installs correctly on Windows 11, follow these steps in order:

: A critical security feature in Windows 11 called Memory Integrity (under Core Isolation) may block older

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Calais\Readers Right-click in the right pane, select New > DWORD (32-bit) Value RetryDeviceInitialize and set the value to (Hexadecimal). Lettore di Smart card USB esterno - IC Intracom

Identify the device:

Windows 11’s in-box drivers support generic CCID readers, but the EZ100PU’s firmware often demands a vendor-specific driver to handle APDU commands (Application Protocol Data Units). Without this driver, you will see a yellow exclamation mark in Device Manager labeled “Unknown USB Device” or “Smart Card Reader” with an error code 28 (drivers not installed).