Double-click it and enter the value as 1.Navigate to this key – \Cryptography\Calais\Readers.To ensure a successful driver initialization, you’ll be required to add the RetryDeviceInitialize registry key and restart the computer. How to fix Code 31 in Device Manager when Microsoft Usbccid Smartcard Reader is in a problem state? The advantage of using this protocol is that it negates the need for each manufacturer of smartcards to provide its own reader or protocol. Microsoft Usbccid Smartcard Reader is an easy-to-install device that is used to connect a smart card with a computer via a USB protocol namely, CCID or chip card interface device. What is Microsoft Usbccid Smartcard Reader (WUDF)? It occurs because the smartcard driver tries to create an instance of smart card class extension but the attempt fails and the driver refuses to load. The requested operation was unsuccessful. This device is not working properly because Windows cannot load the drivers required for this device. In addition to the error signal, you’ll also see a message bearing the following line of description. Microsoft Usbccid smartcard reader (WUDF) not working Following a restart operation in Windows, the Microsoft Usbccid Smartcard Reader may show an error status and display an exclamation mark in a yellow triangle, indicating the device not working properly.
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