Confirm-SecureBootUEFI — by Microsoft Learn
Documents the PowerShell cmdlet that returns True or False for whether Secure Boot is on. It needs an elevated prompt and prints 'Cmdlet not supported on this platform' on legacy BIOS machines.
Quick steps
- Open PowerShell as administrator
- Run Confirm-SecureBootUEFI
Paraphrased from the source. Menus can differ by version, so check the original for full details.
Source: Confirm-SecureBootUEFI by Microsoft Learn. Licence: Link only (©).
- Source reviewed
- 2026-11-02
- Link checked
- 2026-11-02
- Tested hands-on
- Not by Oddbyte.Me