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The forced signature 428 of Windows 8. 1 driver was previously disabled, and now I want to turn on this function 840. What should I do?
Open the CMD command line with administrator privileges.

Enter the following string and press Enter, and then restart it. You can install and run 64-bit drivers without digital signatures.

Bcdedit.exe- Set the load option to disable _ integrity _ checking.

For the stability of the system, it is suggested to install signature driver through Microsoft.

When it is necessary to resume disabling driver signature enforcement

Open the CMD command line with administrator privileges.

Bcdedit.exe- Set the load option to enable integrity checking.

Normal after restart.

You can try!

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