Hi Nik-7539,
I understand how frustrating it is to face a Secure Boot violation issue, especially after you’ve tried everything possible. Once Windows boots only with Secure Boot disabled, it means the current Windows boot files are no longer trusted by the firmware.
At this stage, Windows commands, BIOS resets, or leaving the Windows Insider Program cannot repair a broken Secure Boot installation. The Q&A Assist has provided some suggestions, but if they don't work, here's what you should do now:
- Boot into Windows with Secure Boot disabled.
- Back up all your personal files and data immediately.
- Disconnect from the internet to prevent further updates.
- Create standard Windows installation on bootable media (USB).
- Boot from that USB and select Custom install option
- Delete the existing partitions and perform a fresh installation.
- After it completes, enter BIOS/UEFI and re‑enable Secure Boot.
- Load the factory/default Secure Boot keys.
- Boot back into Windows and verify that applications run normally.
Disclaimer: At this point, we have exhausted all troubleshooting and I recommend that we try to perform a clean install to get your computer back into a working condition. Please ensure that you backup any important data, including Documents, Pictures, Videos, and more. After that, you can find instructions on how to perform a clean install by navigating to the bottom of this guide: Reinstall Windows with the installation media - Microsoft Support
Continuing to run Windows with Secure Boot disabled will cause ongoing issues with apps and security features. This is why Microsoft generally recommends a clean installation of a public (non‑Insider) build when Secure Boot violations persist after updates.
I know this isn’t the answer anyone hopes for, but once all other troubleshooting steps have failed, a clean reinstall is the most realistic and reliable fix.
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