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Look under for any "Smart Card Reader" or "Identiv" drivers. If found, select it and click Download & install .
Have you successfully installed and configured the Ez100pu driver on Windows 11? Share your experience and tips in the comments below to help others.
If you frequently encounter "Card communication error" even after a perfect driver install, it is time to upgrade to a modern reader like the or Identiv SCR3500 . These have native Windows 11 drivers from day one.
: Search the Microsoft Update Catalog for "EZUSB" or "Castles" to find older signed drivers that often still work on Windows 11.