Close permanently:

1. Right-click Start Press and select "Command Prompt (Administrator)";

2. enter or copy bcdedit.exe/set nointegritycheckson and press enter;

just finish executing the command.

to restore the signature, just type or copy:

bcdedit.exe/set nointegritychecks off in the "command prompt" and press enter.

Method 2:

Temporarily shut down;

click start-settings-update and security-restore-click "restart now" under the advanced startup item on the right to enter the advanced startup-select "troubleshooting"-advanced options-startup settings-restart-and then press the number key 7 or F7 (that is, disable the forced signature mode of the driver).

when the system is restarted, digital signature will not be needed.