Windows 11 - Ez100pu Smart Card Reader Driver

The hardware may be installed correctly, but the underlying Windows operating system layer is inactive.

Windows 11 blocks unsigned or old drivers by default. Reboot → Hold while clicking Restart → Troubleshoot → Advanced Options → Startup Settings → Restart → Press 7 (Disable driver signature enforcement). Note: This is a one-boot override.

the 64-bit version of the driver (commonly labeled for Windows 7/10 as they are cross-compatible).

The EZ100PU Smart Card Reader Go to product viewer dialog for this item. ez100pu smart card reader driver windows 11

Without the proper driver, you might encounter issues such as: The device being recognized as "Unknown Device." Smart card applications saying "No Reader Found." Blue Screen of Death (BSOD) when plugging in the reader. Step-by-Step: Installing EZ100PU Driver on Windows 11

also provide direct download links for the Windows 11 x64 driver. 2. Prepare Your Windows 11 Settings Windows 11 includes a feature called Memory Integrity

Is your Windows 11 build running on an or a standard Intel/AMD system ? The hardware may be installed correctly, but the

There is no official, modern "Windows 11" driver package on a slick website for this model. The EZ100PU is an older model (manufactured by CASTLES), so you are often relying on legacy drivers.

Right-click the Setup.exe or install.exe file and choose .

How to Install and Fix the EZ100PU Smart Card Reader Go to product viewer dialog for this item. Driver on Windows 11 The EZ100PU Smart Card Reader Note: This is a one-boot override

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 While it is compatible with Windows 11, its drivers are outdated and conflict with a key security feature.

In the world of digital security, few devices have proven as enduringly reliable as the . For over a decade, this unassuming USB device has been the backbone of government logins, healthcare systems, and corporate authentication across the globe. But as organizations and home users migrate to Windows 11, a critical question emerges: Does the old workhorse still run on the new OS?

| Issue | Cause | Solution | | :--- | :--- | :--- | | | Windows 11's "Memory Integrity" (Core Isolation) blocks the outdated ezusb64.sys driver for security reasons. | Open Windows Security → Device Security → Core Isolation details . Toggle off "Memory Integrity" , then restart your PC. The reader should function normally afterward. | | Browser (Edge/Chrome) Can't Find Reader | For banking or government sites requiring old technology (like ActiveX). | Open the site in Microsoft Edge , go to Settings → Default browser , and enable "Allow sites to be reloaded in Internet Explorer mode (IE mode)" . Reload the banking site in IE mode. | | "Driver Not Installed" Error | Windows Update or security policies are interfering. | Run the installer as Administrator (right-click → "Run as administrator"). Fully remove any old versions via Control Panel → Programs and Features before reinstalling. | | Blue Screen of Death (BSOD) | The driver is crashing under Windows 11's memory management. | Uninstall the driver completely, restart, and reinstall it while the reader is connected but without any card inserted . |