Press F10 to Save the changes and reboot.Secure Boot is enabled when the OS type is set to “Windows UEFI mode” and disabled when it’s set to “Other OS”. Go to Boot -> Secure Boot, change OS type from “Windows UEFI mode” to “Other OS”. If the Secure Boot option is greyed out, you may need to enable legacy / CSM support first.įor ASUS computer’s UEFI BIOS, you have to press F7 to enter Advanced Mode. Navigate to the Boot (or Security) tab, select the Secure Boot option and set it to disabled.When turning on your computer, quickly and repeatedly press a certain key (F2, DEL, F12, ESC, etc.) to enter into UEFI BIOS.
How to Fix Secure Boot Violation on UEFI-Based Computer To fix this issue, you have to temporarily disable Secure Boot in the UEFI BIOS firmware. If you try to boot from a trusted but “unauthorized” operating system, you’ll still receive the “Secure Boot Violation” error.
Secure Boot is a feature included on UEFI-based computers, which ensure that only Microsoft-authorized software can be booted.
This will Boot using the FAT32 BOOT Partition which will use the files on the NTFS INSTALL Partition during the Windows Setup.When your computer boots from a Live CD or a installation disk, you may get a red square in the center of a black screen, with the following error message: The Boot Mode should be set to UEFI and Secure Boot should be ON. Power it up and press to access the BIOS Boot Menu. Power off your Dell Computer and insert your Bootable USB. Note it may take several minutes for the large files to fully copy over to your USB. In this sources folder copy the boot.wim file from the original sources folder of the ISO.Ĭopy all the files/folders from the Windows Installation ISO to the INSTALL Partition. If that file becomes damaged, then the boot process is halted. The BCD (Boot Configuration Data) file that contains boot configuration parameters for Windows system, is a very important part of booting process. In some cases it Caused by BCD file is damaged.
In its place create your own sources folder. Re: Windows 10 version 1803 secure boot violation.
Right click the unallocated space and select New Simple Volume. Select Next.
Delete the FAT32 Partition on your USB Flash Drive. Insert your >16 GB USB Flash Drive and right click the Start Button and select Disk Management. Select Start and then accept the warnings in order to proceed. Use USB as the Volume Label and the FAT32 File System. Under Partition Scheme select GPT and under Target System select BIOS or UEFI. Under Boot Selection, select Non Bootable. Make sure the system is loading from the internal hard disk or Windows Boot Manager and not from Removable Devices. Select your USB under the Device drop down. If you encountered the Secure Boot Violation error when an external drive (whether a hard drive or USB flash drive) was connected to your PC prior to start up, access the BIOS/UEFI settings and configure boot priority (boot order). Setting up a GPT Partition Table on the USBįirst we will use Rufus to create a non-Bootable USB with a GPT Partition Table. To get around this we can create a multi-partition USB with a FAT32 BOOT Partition and NTFS INSTALL Partition. Recent Microsoft installation media from direct download links include an install.wim that exceeds 4.0 GB and therefore if a solo FAT32 Partition is used, the install.wim is truncated and the installation media is therefore corrupted. And while the KB3133977 resolved the problem, it caused the new Secure Boot Violation for Asus users.
One of the limitations in the FAT32 File System is the upper file size of 4.0 GB. The purpose of the KB3133977 update is to resolve an issue that used to prevent BitLocker from encrypting drives on Win7 machines. Many Dell systems expect Bootable Media to have a FAT32 Boot Partition.