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Disable Patchguard Windows 81 _TOP_



How to Disable PatchGuard and Driver Signature Enforcement on Windows 8.1




PatchGuard is a feature of Windows x64 systems that prevents unauthorized modifications to the kernel code. Driver Signature Enforcement (DSE) is another feature that requires all kernel-mode drivers to be digitally signed by Microsoft or a trusted party. These features are designed to improve the security and stability of Windows, but they also pose some challenges for developers, researchers, and enthusiasts who want to experiment with kernel-level programming or load unsigned drivers.




Disable Patchguard Windows 81



Fortunately, there are some ways to disable PatchGuard and DSE at boot time, using various tools and techniques. In this article, we will explore some of the most popular and effective methods to do so on Windows 8.1, which is one of the supported versions of Windows for these methods.


Method 1: Using UPGDSED




UPGDSED stands for Universal PatchGuard and Driver Signature Enforcement Disable. It is a program that patches the Windows boot manager, boot loader, and kernel at boot time in order to disable PatchGuard and DSE. It was developed by EP_X0FF and Fyyre, based on the research of Skywing and others.


To use UPGDSED, you need to have administrative privilege and disable SecureBoot if you have EFI boot. You also need to be aware that using this program might render your computer into an unbootable state, so use it at your own risk.


The steps to use UPGDSED are as follows:


  • Download UPGDSED from https://github.com/hfiref0x/UPGDSED and extract it to a folder.



  • Run patch.exe as administrator.



  • Reboot your computer.



To uninstall UPGDSED, you need to do the following:


  • Open an elevated command prompt and type bcdedit /delete <patch guard disable entry id>, where <patch guard disable entry id> is the identifier of the boot entry created by UPGDSED. You can find it by typing bcdedit /enum and looking for the entry with description "Patch Guard Disable".



  • Navigate to Windows\System32 folder and delete ntkrnlmp.exe, osloader.exe (BIOS boot) or osloader.efi (EFI boot).



  • Reboot your computer.



Method 2: Using EfiGuard




EfiGuard is another program that patches the Windows boot manager, boot loader, and kernel at boot time in order to disable PatchGuard and DSE. It is a portable x64 UEFI bootkit that supports all EFI-compatible versions of Windows x64 ever released, from Vista SP1 to Windows 11. It was developed by Mattiwatti.


To use EfiGuard, you need to have EFI boot and disable SecureBoot. You also need to be aware that using this program might render your computer into an unbootable state, so use it at your own risk.


The steps to use EfiGuard are as follows:


  • Download EfiGuard from https://github.com/Mattiwatti/EfiGuard and extract it to a folder.



  • Run EfiGuardLoader.exe as administrator.



  • Select "Install EfiGuard" from the menu.



  • Reboot your computer.



To uninstall EfiGuard, you need to do the following:


  • Run EfiGuardLoader.exe as administrator.



  • Select "Uninstall EfiGuard" from the menu.



  • Reboot your computer.



Conclusion




In this article, we have learned how to disable PatchGuard and DSE on Windows 8.1 using two different methods: UPGDSED and EfiGuard. These methods allow us to bypass the kernel protection features of Windows and load unsigned drivers or modify kernel code. However, they also come with some risks and limitations, so we should use them carefully and responsibly.


Why Disable PatchGuard and DSE?




Some of you might be wondering why anyone would want to disable PatchGuard and DSE in the first place. After all, these features are meant to protect the Windows kernel from malicious or unstable modifications that could compromise the system's security and reliability. Why would anyone want to expose themselves to such risks?


Well, there are some legitimate reasons why some users might want to disable PatchGuard and DSE. For example:


  • Some developers and researchers need to load unsigned drivers or modify kernel code for testing, debugging, or reverse engineering purposes. For instance, they might want to analyze the behavior of malware, rootkits, or exploits that target the kernel.



  • Some enthusiasts and hobbyists want to customize or tweak their Windows system beyond the official limits. For instance, they might want to change the appearance of the boot screen, enable hidden features, or overclock their hardware.



  • Some users have old or rare hardware devices that do not have official drivers for Windows x64 systems. For instance, they might have a legacy sound card, a scanner, or a printer that only works with unsigned drivers.



In these cases, disabling PatchGuard and DSE might be the only way to achieve their goals. However, they should also be aware of the potential consequences of doing so. For example:


  • Disabling PatchGuard and DSE might make the system more vulnerable to malware, rootkits, or exploits that target the kernel. For instance, they might be able to bypass antivirus software, hide their presence, or gain elevated privileges.



  • Disabling PatchGuard and DSE might make the system more unstable or prone to crashes. For instance, they might cause conflicts, errors, or corruption in the kernel code or data.



  • Disabling PatchGuard and DSE might void the warranty or support of the system or device. For instance, they might violate the terms and conditions of the manufacturer or vendor.



Therefore, disabling PatchGuard and DSE should be done with caution and discretion. It should only be done by users who know what they are doing and are willing to accept the risks and responsibilities. It should also be done temporarily and only when necessary. It should not be done as a permanent or default option.


Conclusion




In this article, we have learned how to disable PatchGuard and DSE on Windows 8.1 using two different methods: UPGDSED and EfiGuard. These methods allow us to bypass the kernel protection features of Windows and load unsigned drivers or modify kernel code. However, they also come with some risks and limitations, so we should use them carefully and responsibly.


We have also learned why some users might want to disable PatchGuard and DSE, and what are the potential consequences of doing so. Disabling PatchGuard and DSE might be useful for some purposes, such as development, research, or customization, but it might also expose the system to malware, instability, or warranty issues. Therefore, disabling PatchGuard and DSE should be done with caution and discretion. It should only be done by users who know what they are doing and are willing to accept the risks and responsibilities. It should also be done temporarily and only when necessary. It should not be done as a permanent or default option.


We hope this article has been helpful and informative for you. If you have any questions or feedback, please feel free to leave a comment below. Thank you for reading. 6c859133af


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