Problem with Sony Vaio VPCEB1J1E video drivers

[marquezzzzz]

Hello, I have a Sony Vaio VPCEB1J1E laptop (Windows 7 Home) that has been working without problems for a few years, until a couple of weeks ago when I decided to update the drivers from the Sony Update application that comes installed on the computer.
After the update, the video does not work correctly again, that is, the brightness control does not work correctly, only 3 supported resolutions appear when there were many more before... From the device manager, the following message appears in Device Status:

Windows cannot verify the digital signature on the drivers required for this device. A recent hardware or software change might have installed an incorrectly signed file, damaged file, or malicious software from an unknown source. (Code 52)

I have uninstalled the drivers and reinstalled older ones and the same problem persists. Does anyone know what the problem might be or how to fix it?

Regards and thanks

[marquezzzzz]

The problem is with the digital signature of the video drivers because I tried to enter with F8 when Windows starts, option Disable digital signature of drivers and it works without problems.

I have seen that you can add the option to the boot:
bcdedit /set nointegritychecks ON

But it still does not work. The system is Windows 7 Home Premium.

Regards