Forget the original CD. The most reliable driver for the EZ100PU on Windows 11 is the included with Windows, or the specialized driver from REINER SCT (which also works for many clones).
Sometimes the "better" driver is no driver at all. Windows 11 has a robust library of generic USB CCID (Chip Card Interface Devices) drivers. Plug in the . Open Device Manager . Right-click the reader →right arrow Update driver . Select Browse my computer for drivers .
After the restart, select . Press 7 to choose "Disable driver signature enforcement." Once Windows boots, install the driver again. Key Tips for Stable EZ100PU Performance on Windows 11 To ensure your reader remains "better" for a long time: ez100pu smart card reader driver windows 11 better
Right-click the downloaded driver file and select . Follow the prompts and restart your computer once finished. Verify in Device Manager: Right-click the Start button and select Device Manager . Look under Smart card readers . You should see " EZ100PU Smart Card Reader " or "EZUSB PC/SC Smart Card Reader". Troubleshooting Common Issues
For further hardware testing, you can use the command prompt and type certutil -scinfo to verify if Windows can successfully communicate with an inserted card. ez100pu Driver for Windows 11 - AliExpress Forget the original CD
If you have landed on this page, you are likely frustrated. You own a reliable —a staple for digital signatures, online banking, national ID card reading, or healthcare system access—but since upgrading to Windows 11, it has become a paperweight. Or perhaps it works, but barely, with constant "device not recognized" errors or blue screens.
If Windows 11 refuses to install the driver because it is not properly signed, you may need to disable driver signature enforcement: Go to . Under Advanced startup , click Restart now . Windows 11 has a robust library of generic
: Windows 11 aggressively cuts power to idle USB devices. Go to Control Panel > Power Options > Change plan settings > Change advanced power settings . Expand USB settings > USB selective suspend setting and change it to Disabled .
A "better" driver is one that passes Windows 11’s hardware certification, supports both 32-bit and 64-bit architectures, and works seamlessly with modern smart cards (e.g., ISO 7816-3).
, unplug the device, and plug it back in to let Windows Auto-Install the generic driver. Registry Modification for Reliability: