How to fix Windows cannot verify the digital signature for this file error in Windows 8. Vista. wintips. In Windows 8 8. Had the same type of problem. After system recovery on a HP computer,it wouldnt take the 92 critical updates after 1 critical update and Windows Genuine validation. Reinstall-Windows-XP-Step-8Bullet1.jpg/aid34317-v4-728px-Reinstall-Windows-XP-Step-8Bullet1.jpg' alt='Cannot Activate Windows Xp Pro After Repair' title='Cannot Activate Windows Xp Pro After Repair' />Vista Operating Systems, you cannot load a driver or execute a program that hasnt a Driver Signature. Driver Signing is a method to verify the identity of the software publisher or the hardware driver vendor in order to protect your system from been infected with malware rootkits, that are able to run on the lowest level of Operating System. Information about Windows XP, Vista, Windows 7 and 8 including tweaks, slipstreaming, install, registry, and forum for all Windows versions. Windows Xp Performance Test Fix, Clean WINDOWS XP PERFORMANCE TEST And Optimize PC SPEED Up Your PC FREE Scan Now Recommended. Speedy PC Pro 7. People cannot let go of Windows XP. In businesses and homes the world over, it will stick around. We spoke with three Windows XP users from different generations and. Since in my opinion the repair install or upgrade run from Windows is an absolute necessity when changing a motherboard or moving a hard drive with XP installed. This means that all drivers and programs must be digitally signed verified in order to be installed and run on 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 cannot always pay Microsoft to verify all their products or Microsoft cannot verify all the drivers or programs that are published every day. But this becomes a problem in the case that you own an old unsigned legitimate software or driver and you want to install or load it to your computer, because the OS doesnt allow it to work or load. Problems Symptoms that are solved with this guide Windows cannot verify the digital signature for this file. Windows requires digitally signed driver OR Digitally signed driver is required. Digital Signature Not Found. Cannot load or install an unsigned driver. Cannot run execute an unsigned software program. Windows did not find a Microsoft signature associated with the software package you want to install. In order to resolve digitally signed driver installation errors, follow the steps below Attention Keep in mind that disabling the Driver Signature Enforcement is a security risk, and you must disable it only if you are sure that the driver or program that you want to install and run is trusted and legitimate. Solution 1 Disable Driver Signature once. Solution 2 Disable Driver Signature completely. Solution 1 Disable Driver Signature once. Note Use this solution to disable driver Signature Enforcement just once in order to install a unsigned driver e. Step 1. Enter in Advanced Options menu. Windows 7 Vista. To enter in Advanced Options menu in Windows 7 and Vista OS Close all programs and reboot your computer. Press the F8 key as your computer is booting up, before the appearance of the Windows logo. When the Windows Advanced Options Menu appears on your screen, use your keyboard arrow keys to highlight the Disable Driver Signature Enforcement option and then press ENTER. Windows 1. 0, 8 8. To enter in Advanced Options menu in Windows 1. OS 1.  Right click at the Windows Start button and select Shut Down or sign out. Press and HOLD down the SHIFT key and then click Restart. When Windows restarts, press Troubleshoot. In the Troubleshoot options screen, choose Advanced options. In the Advanced Options window, choose Startup Settings. In Startup Settings screen, click Restart. After restart, select the Disable driver signature enforcement option and press Enter. Note If you see the below screen Startup Settings, press the F7 or the 7 key on your keyboard to select theDisable driver signature enforcement option. Then, proceed to install your unsigned driver. During the installation procedure, Windows will inform you that cant verify the publisher of this driver software. At this point, ignore the warning message and choose Install this driver software anyway to complete the installation. Normally installation should be done without errors now. Keep in mind that after the restart, the driver signature enforcement will be enabled again to avoid security risks. If you want to keep driver signature enforcement always disabled, then you must apply solution 2. Solution 2 Disable Driver Signature completely. Note Use this solution only if you want to keep driver signature enforcement always disabled. In this solution, we are going to modify Windows Boot loader options with the BCDEDIT tool. Step 1. Disable Secure Boot in BIOS. Power On your computer and launch BIOS SETUP settings. In BIOS, disable the Secure Boot option. Security section or at Boot Options sectionStep 2. Modify Windows Boot Loader. In order to modify boot loader, open Command Prompt in administrative mode 1. Right click at the Windows Start button and choose Command Prompt Admin. Choose Yes at User Account Control warning message 3. Inside the command prompt window, type the following command and press Enter bcdedit set testsigning on. You should receive The operation completed successfully message. Close command prompt window and restart your computer. From now on, you will be able to install or run any unsigned driver or program without problems. How to enable Driver Signature Enforcement. In case that you want to enable driver signature enforcement in the future and avoid security risks, then open Command Prompt with elevate rights again. Type type the following command and press Enterbcdedit set testsigning off. You should receive The operation completed successfully message. Close command prompt window and restart your computer. Install the unsigned driver. Note If you still cannot install unsigned drivers then 1. Open a command prompt with Administrative privileges and type this command bcdedit set nointegritychecks ON2. Restart your computer. Install the unsigned driver. Update 46 With Svn Update there. To re enable device driver signing, again type bcdedit set nointegritychecks OFFThats it If this article was useful for you, please consider supporting us by making a donation. Even 1 can a make a huge difference for us in our effort to continue to help others while keeping this site free. 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