Reader Driver Windows 11 | Ez100pu Smart Card

: The main communication layer relies on ezusb64.sys .

Typically delivered as a .zip archive or a direct .exe installer. Alternative Government Portal Repositories ez100pu smart card reader driver windows 11

Go to the official Castles Technology website (the original manufacturer of the EZ100PU) or your local government's official IT portal. Locate the or Support section. Search for EZ100PU . : The main communication layer relies on ezusb64

Windows 11 may block the EZ100PU driver because it is often unsigned or uses older code that conflicts with modern security features. This is the most common reason for installation failure. Open Windows Security via the Start menu. Navigate to Device security > Core isolation details . Toggle Memory integrity to Off . Restart your computer. Disable Driver Signature Enforcement Locate the or Support section

This is the most critical step to resolve the incompatibility.

Switch to a different USB port. If you are using a USB hub, remove it and connect the reader directly to the PC.