The EZ100PU is a USB smart card reader commonly used for PKI authentication, digital signatures, and access control. This article explains Windows 11 driver options, installation steps, troubleshooting, and where to get compatible drivers and firmware.
| Issue | Solution | |-------|----------| | Driver signature error | Restart Windows → Disable driver signature enforcement (Shift + Restart → Troubleshoot → Startup Settings) | | Reader not detected | Try a different USB port, preferably USB 2.0 | | Still not working | Use a virtual machine with Windows 7, or switch to a modern CCID-compliant reader | ez100pu smart card reader driver windows 11
When plugged in, you may see the device listed in Device Manager under "Other devices" as an unknown device, or under "Smart Card readers" with a yellow exclamation mark, indicating that the driver is missing or corrupted. EZ100PU Smart Card Reader Driver — Windows 11
: It is highly popular in Taiwan for accessing government services, including tax payments and reading NHI (health insurance) cards Developer Support : It supports a wide range of APIs including Plug the EZ100PU into a USB port