When you disable this boot option, you can boot the computer from an external device (USB or CD), dual-boot (for example, Windows with Ubuntu Linux), boot Windows using Windows. This feature protects your computer from unauthorized devices. The only thing that seems to resolve the issue is reimaging the machine with Secure Boot disabled and leaving it disabled. Secure Boot is an option for booting a computer with Windows 8 or later versions with UEFI firmware. We have searched high and low, adjusted just about everything in the book to try and resolve this issue but we have not been successful. Both other models have Secure Boot enabled. This is a domain joined machine recieving the same GPO's as a Dell Optiplex 9020 and a Dell Optiplex 7440 AIO which are not experiencing the same issues as the 9030.
Dell disable secure boot windows 10 windows 10#
After the third attempt to boot has failed, Windows 10 will automatically boot into the Windows Recovery Environment (WinRE). Follow the steps below to reset Windows 10: 1. A reset of Windows 10 will reinstall these files without damaging your data. All consecutive restarts after that will hang on the black screen again like it did with Secure Boot enabled. Damaged system files can also lead to Dell boot loop. We turn Secure Boot back off, we will see one normal restart. When the machine is restarted, it looks as if Windows is restarting then hangs on a black screen forcing us to power cycle the machine. For an UEFI system, as its starts, it first verifies if the firmware is digitally signed, thereby reducing the risk of firmware rootkits.
Dell disable secure boot windows 10 Pc#
The issue begins when we enable Secure Boot in the BIOS of the machine. Windows 10 UEFI Secure Boot, an UEFI feature as per specification 2.3.1 errata C, helps to secure the Windows pre-boot phase mitigating the risks against rootkits and bootkits. On older computer that cannot be upgraded to Windows 10/11, apply the following BIOS settings: Disable Fast Boot Disable CD-ROM Boot Disable Network (PXE) Boot Disable Secure boot and Enable after PC is imaged SATA Operation: AHCI NOTE: Ensure that in the Dell BIOS AHCI is selected and not RAID as RAID is default. We have a custom Windows 10 image that when deployed with secure boot disabled, works as expected. We are experiencing an issue with the Dell 9030 AIO and Secure Boot.
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