Windows 10: No Display After Enabling Secure Boot – Only Color Cycling on All-in-One PC

Hello everyone,I have a CSL All-in-One PC running Windows 11. I recently enabled Secure Boot in the UEFI firmware settings via the "Advanced Startup" options Settings → Recovery → Restart now → UEFI Firmware Settings.After restarting, the screen no longer shows anything usable — only a rapid color cycle red, green, blue, black, etc.. There is no access to BIOS or any boot screen. However, I can still hear the Windows startup sound after a while, so I believe the system is running in the background.What I’ve tried so far:- Removed and reinserted the CMOS battery CR2032- Tried multiple HDM

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Enabling secure boot leads to no display from pc

Hi there, I am having a strange issue with my pc in which enabling secure boot prevents my pc from giving me a display.

I can unplug the cmos and regain a display, but, with secure boot disabled, which isn't an option for the software I am trying to run.

I had secure boot enabled previously but since resetting my bios to the default settings, I am faced with a black screen every time I try and enable secure boot.

My system is running Windows 11 with these specs:

Ryzen 5 5600g

Asrock Fatality b450 motherboard

RTX 3080FE

32gb of ram

Any help is appreciated. Thanks

EDIT:

For anyone else having the same problem, it seems to be an issue with the latest nvidia gpu drivers, I rolled mine back by one version and it now works

 

Windows 8 Secure Boot Feature: Not So Secure?

So Linux is switching to secure boot also? Or they have to because of UEFI?

 

how to fiix my display colors

Hi Farbod,

We have different options to personalize your PC depending on your choice. To set your PC's display color back to default, you can follow the steps below:

• Type calibrate display color in the Search fieldlocated at the taskbar.
• Enter your admin username and password in the User Account Control.
• Click Yes then access the settings to calibrate your PC's display colors.

If that does not work for you, you can also try to go to Color Settings. You can choose
Default blue as the Windows color.

Let us know should you need additional assistance.