Ez100pu Smart Card Reader Driver Windows 11 ((full)) Jun 2026

is a widely used device for reading and MyKad identity cards. While older drivers (dating back to 2007) were designed for Windows XP through Windows 10, modern Windows 11 updates have introduced specific security features that can impact how these drivers function. Key Features and Compatibility in Windows 11

Right-click the Windows Start menu and select . Expand the Smart card readers category.

Go to > Settings > Privacy & Security > Windows Security . Select Device Security > Core isolation details . Toggle Memory integrity to Off .

with a yellow warning icon or a "Code 31" error, you may need a registry tweak to help Windows initialize the device properly. , and hit Enter. Navigate to: ez100pu smart card reader driver windows 11

The EZ100PU is a CCID-compliant (Chip Card Interface Device) reader. Manufactured primarily by Advanced Card Systems Ltd. (ACS), it was designed during the Windows XP and Windows 7 eras. Windows 11, however, introduces stricter driver signing requirements and a hardened kernel.

: If Windows doesn't find the driver automatically, you can manually point the system to the driver file using the "Update driver" option in Device Manager.

: The main communication layer relies on ezusb64.sys . is a widely used device for reading and MyKad identity cards

The EZ100PU Smart Card Reader has been a standard tool for online banking, government services, and digital signing for many years. It is produced by Castles Technology (虹堡科技) and is also sold under various brand names like aibo, fujiei, and infotec, all using essentially the same hardware and drivers. While it is compatible with Windows 11, its drivers are outdated and conflict with a key security feature.

Windows 11 features a vast driver library that frequently configures plug-and-play devices automatically.

: Windows 11’s "Memory Integrity" feature often blocks legacy drivers like the EZ100PU's. Settings > Privacy & Security > Windows Security Device security > Core isolation details Memory integrity and restart your PC. Run the Installer Autorun.exe from the driver package. If prompted, select the model and follow the on-screen instructions. Verification Expand the Smart card readers category

: The EZ100PU identifies on the system bus as USB\VID_0CA6&PID_0010 .

The you are trying to access (e.g., banking, tax website)

Avoid third-party driver download sites, as they may contain malware or outdated files. Always source the driver from the official manufacturer or trusted government repositories.

working on , you must address a compatibility conflict between its legacy driver ( ezusb64.sys ) and Windows 11’s Core Isolation (Memory Integrity) security feature . While older operating systems handle the device via plug-and-play, Windows 11 actively blocks unverified or vulnerable legacy drivers, resulting in a yellow exclamation mark error in Device Manager.