Thank you for choosing Lenovo products. You can operate as follows: Method 1: When starting up, you can press F8 to select "Disable driver signature enforcement" mode to enter the system, and then the driver will work normally. However, this method is temporary and will not be effective at the next restart.

Method 2: Start the operation, input: bcdedit /set testsigning on, and then restart, and then the forced digital signature can be closed. However, after starting the desktop, the watermark of "test mode" will be prompted in the lower right corner, but it is not inconvenient to use. (If you want to restore, the command is: bcdedit /set testsigning off. )

For more questions, please consult Lenovo Intelligent Robot:

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If you don't solve your problem, you can spit out your valuable opinions and then ask for manual service.

I look forward to your satisfactory evaluation, thank you for your support to Lenovo, and wish you a happy life!