Digital Signatures ensure that the software publisher or hardware vendor is trusted and verified by Microsoft. But some publishers and vendors cannot always pay Microsoft to verify all their products or Microsoft cannot verify all the drivers or programs that are published every day. The Digital Signature For This File Couldn’t Be Verified"  This Error happens after install a new software / driver and restart the windows. If any of new installed software or driver not trusted by Microsoft you will get the Error message like .
A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source.

File: \windows\system32\winload.exe

Status: 0xc0000428

Info: The digital signature for this file couldn’t be verified.



This information indicates that something is wrong with boot manager. It may be corrupted or missing, anything could happen.This is a  most terrible issues for Windows users because you can’t boot to your operating system to fix them. Most of them require use of recovery media and if the user don’t have any install or recovery media, fixing the machine becomes more complex.

How to Fix "The Digital Signature For This File Couldn’t Be Verified" Error 0xc0000428

If you are facing this Error here some tips to fix this. first thing we have to do after getting this error was to reboot the machine, and check normally start the windows if it didn’t helped.

Rebuild Boot Manager
First insert your Bootable DVD or USB drive and Restart windows. when windows boot screen starts press Del key on key board ( as per your manufacture try different keys like Esc, F2 , F8or F12 key)  to Access BIOS Setup window .



now As shown picture use Right Arrow key and move to Boot options and set first Boot device to CD/DVD - Rom Drive and second Boot Device To Hard disk.

Note : If you are using Bootable USB drive set first device boot to Removable Devices .

Now Use F10 key to make save changes press yes to confirm changes. now windows will boot from DVD and a screen will show like bellow image Press any key to boot from CD or DVD.


press any key on keyboard this will boot to your windows installation Screen here select your prefer language, Time and Currency format , key board input method. and click next .


Now on next screen windows installation window select Repair your computer. this will open troubleshooting window. here click on Advance options and select command prompt.

This will open the command prompt window here perform fallowing commands one by one and press enter key every time.

C:

cd boot

attrib bcd -s -h -r

bootrec /rebuildbcd



After complete all commands exit the windows command prompt. to do this use command exit.

Perform Startup Repair

After exit command prompt you are now on advance option window here select troubleshooting and select Startup repair As shown bellow image.



when you select startup repair this will restart the window and during startup this will start diagnose your system. During this diagnostic phase, Startup Repair will scan your system and analyze the various settings, configuration options, and system files as it looks for corrupt files or botched configuration settings. More specifically, Startup Repair will look for the following problems:

Missing/corrupt/incompatible drivers
Missing/corrupt system files
Missing/corrupt boot configuration settings
Corrupt registry settings
Corrupt disk metadata (master boot record, partition table, or boot sector)
Problematic update installation


If Startup Repair detects any of these types of problems, it will automatically attempt to fix them. If Startup Repair can fix the problem, it will do so without any intervention. It will then restart the system and boot normally. check problem solved , if still you face same problem fallow next steps.

Disable Driver Signature Enforcement Temporarily

As per the error message, you can also disable driver signature enforcement and see if that helps you to do this again you have to boot your system on Advanced options and  Choose Startup Settings

Here on Startup Setting Screen ( As Shown bellow image ) click on Restart.



Now here After restart, select the "Disable driver signature enforcement" option ( press F7 Key on key board ) and press Enter.