Microsoft has recently begun replacing expiring Secure Boot certificates on eligible Windows 11 systems running 24H2 and 25H2 ...

Your system will still work without the security feature, but what are the risks if you disable it?

Microsoft confirms systems without updated Secure Boot certificates will boot normally but lose some security protections.

In June 2025, Microsoft announced that, in June 2026, it would begin deprecating Secure Boot certificates of Windows systems from 2011, which were superseded by their 2023 counterparts.

If your Windows install is feeling creaky and you want to freshen up, or if you don't have Windows at all, the fastest way to fix things up is to simply do a clean install. Back up your important ...