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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.

2025-11-29

“Secure Boot Is Not Supported” Fix Guide (2025): Causes, UEFI Settings, TPM, and CSM Solutions

Seeing a message like “Secure Boot is not supported” and not sure what to do?This warning can appear in tools such as PC Heal […]