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CSM disable UEFI

Illustration showing a computer screen with the error message “Secure Boot is not supported” and a checklist with steps like Check BIOS, Load PK, Disable CSM, and Update BIOS, on a turquoise background.

2025-07-19

English Article (HTML format, 2025 Updated, Beginner-Friendly)

Have you ever seen the message “Secure Boot is not supported” when turning on your PC? This error can be alarming, especially […]