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How to turn off the digital signature of the driver of Lenovo notebook computer Win7 Flag Edition? Press F8 to start the machine, and there is no response! ! ! ! Ignore local policies
For WIN7 system, you should press F8 as soon as it is turned on. There's nothing wrong with that.
If not, you can try to enter safe mode and manually delete this driver.
If not, you need to reinstall the system to solve it. This is usually caused by a virus or driver mismatch.