Find a method to start the system without triggering secure boot.
Find a method to start the system without triggering secure boot.
You're facing a boot issue with your Acer laptop that only accepts Windows and Ubuntu. Despite disabling TPM and Secure Boot, the secure boot warning persists. It might help to check if there are any firmware updates available or if the issue is specific to your hardware model. If none of these steps resolve it, you may need to consider alternative solutions or contact Acer support for further assistance.
For Windows 11, secure boot must be enabled. Turning it off doesn't guarantee the system can start from other storage depending on BIOS settings. Look for an F key (F11, F12, etc.) to access one-time-boot settings where you can choose the boot device at launch.
Secure boot wasn't necessary. I had dual-boot and disabled it, but Windows still started properly. OP usually uses dual-boot with Linux and Windows, and he needs to sign drivers from Ubuntu so the BIOS can identify the OS as authenticated. There are many resources on this topic.
I don’t have Windows installed at the moment—I only have Elementry OS. Even when using F12 to boot, it reports a secure boot failure when trying to load systems that don’t support it, despite secure boot being disabled.