Digital signature hard lock dongle is not working.

Hi,
I have a digital signature hard lock dongle.
 Which is not detecting on windows 7 64bit professional. However it is working with another dongle like Data Card, Pen drive, etc.
I also checked with another system it is working fine with other laptops. And digital signature dongle is working fine with other system also. But particular one system it is not able to recognize the same.
Please suggest for the same.
Thanks,
Tapas

Hi ittapas,
I suggest you manually find the driver in the dongle manufacture website, download and install it in your system, as well as some needed applications, if issue persists, check if you have any previous restore point, return the PC to a previous restore point
at which the system was functioning fine, test the issue.
Regards
Yolanda Zhu
TechNet Community Support

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