After the information that indicates the successful completion of the task, type that expression: bcdedit.exe -set TESTSIGNING ON.Activated by 'Command line'.in which you must enter the following: bcdedit.exe -set loadoptions DDISABLE_INTEGRITY_CHECKS.By right-clicking on the specified item ( PCM), select the position 'Execute as an administrator'.

In the directory that opens, look for Command Prompt.You can disable digital signature verification by entering commands in 'Command line'. This option is only suitable for a single connection if you do not plan to use the device on a regular basis. The downside of this method is that as soon as you start the PC next time in normal mode, all installed drivers without digital signatures will immediately shut down. The PC will then boot into signature verification disabled mode and you can safely install any drivers.Use the navigation arrows on your keyboard to select 'Disable mandatory verification. But in the vast majority of cases you must apply exactly the above option. In some cases it may be a button or a different combination, depending on the BIOS version installed on your PC. As soon as the start-up beep sounds, press the key. Restart or turn on the computer, depending on its current state.To disable signature verification of drivers when installing them in Windows 7, you can boot the operating system in a special mode. Method 1: Switch to boot mode with disabling mandatory signature verification In these cases, it is a good idea to use the methods described below. At the same time, there are situations where the authenticity of the drivers is certain (for example, when they are shipped with the computer on disk media), but they lack a digital signature for some reason.

Windows 7 driver signature enforcement