The installation failure report "Unable to verify the signature of the installation file" may be caused by incorrect system time, lack of root certificate or other reasons.

You can solve the problem by directly downloading the installation package file and running the installation.

1, first enter the personal website of ABC.

2. Then find "KBao's first landing" and click in.

3. Click Install KBao Driver, and then according to your certificate type? Download kBao Driver Download.

4. After downloading and installing, it can be used normally.