What if win8 can't identify the 23-type U shield of China Merchants Bank?
If you are using WIN8 operating system and 3.0 USB interface, there may be incompatibility between UKEY and professional version of our bank (we have reported it to the Technical Department for verification). You can copy a file certificate on other computers by moving the certificate, then back up the certificate, and then operate the file certificate on win8 system by backing up the file (select the file certificate in the professional login interface and click Certificate Recovery).