Win7, 64-bit system can just disable the driver's mandatory signature, the specific steps are as follows:

1. When booting to the system option, press F8 immediately to enter the safe mode. You can press F8 earlier so as not to miss the time.

2. After entering the advanced mode, use the up and down arrow keys on the keyboard to move the cursor to the bottom, find and select "Disable driver signature enforcement", press Enter to enter the system, and then update the hardware driver without signing the driver.

3. The above is a one-time solution. If you want to disable driver signature enforcement for a long time, you should use the following methods to open "All Programs" from the beginning, then find the "Command Prompt" from the attachment, right-click it and run it as an administrator.

4. After input, enter bcdedit.exe-Set Load Options command at the cursor, and then press Enter.

5. If driver signature enforcement is successfully disabled, "Operation completed successfully" will be displayed, and driver signature will not block all drivers installed in the future.