How to fix: “Windows cannot verify the digital signature for this file” error in Windows 8.1, 8, 7 and Vista. – wintips.org

In Windows 8 (& 8.1), 7, and Vista operating systems, you cannot load a driver or run a program without a Driver Signature. Driver Signing is a method of verifying the identity of a software publisher or hardware (driver) vendor to protect your system from being infected by malware rootkits, Able to work at the lowest level of the operating system. This means that all drivers and programs must be digitally signed (verified) in order to be installed and run on the latest Windows operating systems.

Digital signatures ensure that the software publisher or hardware vendor is trusted and verified by Microsoft. But in real life, publishers and vendors can’t always pay Microsoft to test all their products, or Microsoft can’t test all the drivers or software it publishes every day. But this becomes a problem when you have an old unsigned legitimate software or driver and you want to install or load it on your computer because the OS won’t allow it to run or load.

Problems – Symptoms that can be solved with this guide:
Windows cannot verify the digital signature for this file. (0xc0000428)
– Windows requires a digitally signed driver or requires a digitally signed driver.
– No digital signature found.
– An unsigned driver cannot be downloaded or installed.
– Unsigned software (program) cannot be started (executed).
– Windows could not find the Microsoft signature associated with the software package you are trying to install.

Follow these steps to resolve digitally signed driver installation errors:

Windows cannot verify the digital signature

How to disable driver signature enforcement in Windows 8.1, Windows 8, Windows 7, Windows Server 2008, or Windows Vista.

Attention: Keep in mind that disabling Driver Signature Enforcement is a security risk, and you should only disable it if you’re sure that the driver or program you want to install and run is trustworthy and legitimate.

Solution 1: Disable the driver signature once.

Solution 2: Disable driver signing completely.

Solution 1: Disable the driver signature once.*

*Note: Use this workaround to disable driver signature enforcement once you install an unsigned driver (such as an old printer driver).

Step 1. Enter the advanced settings menu.

Windows 7 and Vista

To access the Advanced settings menu in Windows 7 and Vista OS:

  1. Close all programs and restart your computer.
  2. Click on “F8While your computer is booting, press the ” button before the Windows logo appears.
  3. When “Windows advanced settings menu” if it appears on your screen, use the arrow keys on your keyboard “Disable driver signature enforcement” option and then click “INTRODUCTION“.

DisableDriverSignature7

Windows 10, 8 and 8.1

To access the Advanced settings menu in Windows 10, 8.1 and 8 OS:

1. That’s right Click Windows Start button image and select Shut down or log out.

2. press and TO HOLD down SHIFT button and then press Restart.

ShiftRestart

3. When Windows restarts, click Troubleshooting“.

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4. “atTroubleshooting optionsOn the ” screen, select “Advanced options“.

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5. “atAdvanced optionsSelect ” from the ” windowStartup settings“.

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6. “atStartup settingsOn the ” screen, click “Restart“.

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7. After restarting, “Disable driver signature enforcement” option and click Enter. *

*Note: If you see the following screen (Startup settings), press the “ buttonF7” (or “7”) and select “Disable driver signature enforcement” option.

disable-driver-signature-apply

8. Then, proceed to install the unsigned driver. During the installation process, Windows will inform you that it cannot verify the publisher of this driver software. At this point, ignore the warning message and select “Install this driver anyway” to complete the installation.

the publisher cannot be verified

Normally the installation should now run without errors. Note that after a reboot, driver signature enforcement will be enabled again to avoid security risks. If you want to always disable driver signature enforcement, you should use solution 2.

Solution 2: Disable driver signing completely.*

*Note: Use this solution only if you want to always disable driver signature enforcement. (eg if you always want to run old legal software).

In this solution, we are going to change Windows boot settings using BCDEDIT tool.

Step 1. Disable Secure Boot in BIOS.

1. Turn on your computer and run BIOS SETUP.

2. In the BIOS, turn off the Safe download option. (the setting is usually located at the following address Security section or da Download options department)

Step 2. Change the Windows Boot Loader.

– “Open” to change the bootloaderCommand line” in administrative mode:

1. That’s right Click Windows Start button image and select “Command Prompt (Admin)“.

windows-8-administrator-command-prom

2. selectYes” in User account management“warning message:

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3. Type the following command in the Command Prompt window and clickEnter“:

  • bcdedit / install test access

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You should get a “operation completed successfully” message.

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4. Close the Command Prompt window and restart your computer.

From now on, you will be able to install or run any unsigned driver or program without any problems.

How to enable driver signature enforcement.

1. If you want to enable driver signature enforcement in the future and avoid security risks, “Command line” again with higher rights.

2. Enter the following command and click “Enter

  • bcdedit / install testsigning off

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You should get a “operation completed successfully” message.

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3. Close the Command Prompt window and restart your computer.

4. Install an unsigned driver. *

*Note: If you still cannot install unsigned drivers, then:

1. Open a command prompt with administrative privileges and enter the following command:

  • bcdedit /set nointegritychecks ON

2. Restart your computer

3. Install the unsigned driver.

To re-enable device driver signing, type again: bcdedit /set nonintegritychecks OFF

That’s it!

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