When installing unsigned drivers on Windows 10, Windows pops up a warning saying Windows can’t verify the publisher of this driver software. 

The following are instructions on how to install unsigned drivers in Windows 10. 

NOTE: Checking driver signatures is a security feature in Windows, and disabling it is not recommended. Only install unsigned drivers from trusted sources. 

1. Install Unsigned Drivers from Advanced Boot Menu. The easiest way to install unsigned drivers is to use the Windows 10 Advanced Boot menu. To do that, press “Win + X,” navigate to “Shutdown” and then “Shift + Left Click” on the “Restart” option. 

2. The above action will restart your system and will take you to the Advanced Boot menu. From here, select the “Troubleshoot” option. 

3. In the Troubleshoot section, select the option “Advanced Options”. 

4. Now, select “Start-up Settings”. 

5. The Start-up Settings option will allow you to boot your Windows system in different modes. Just click on the “Restart” button to continue. 

6. Since we need to install unsigned drivers, press F7 on your keyboard to select the seventh option “Disable driver signature enforcement”. 

As soon as you press the key, your system will boot into Windows. Now you can install any unsigned driver you wish. After installing, restart your system, and the Driver Signature Enforcement will be automatically enabled from the next reboot. If you want to install another unsigned driver, you must go through the process listed above again.