The is a legacy driver for USB-based Smart Card Readers (specifically those compliant with the PC/SC standard, often manufactured by OMNIKEY or Feitian ). It is notoriously problematic on Windows 11 due to:
Yes, but it often requires manual intervention. Ez100pu Driver Windows 11
| Error | Solution | |--------|-----------| | | Reboot with driver signature enforcement disabled (Method 1, Step 2). | | Device disappears after sleep | Disable USB selective suspend: Control Panel → Power Options → Change plan settings → USB settings → Disable. | | “Code 10 – Device cannot start” | Uninstall driver, delete from Device Manager, reinstall using compatibility mode (Windows 7). | | Reader lights up but no data reads | Your card track may need cleaning, or the baud rate is wrong. Use a serial monitor (e.g., PuTTY) at 9600 baud. | The is a legacy driver for USB-based Smart
If you're still experiencing issues with the Ez100pu driver on Windows 11, feel free to share your concerns in the comments below. We'll do our best to help you troubleshoot or provide alternative solutions. | | Device disappears after sleep | Disable
For advanced functions (like digital signatures in Adobe Acrobat or browser-based authentication), you may also need:
Windows 11's feature often blocks older EZ100PU drivers to protect against unauthorized code injection. If your driver won't load, you may need to disable this: Step 1 : Search for "Core Isolation" in the Windows taskbar. Step 2 : Turn off the toggle for Memory Integrity .