All bootable devices failed Secure Boot Verification

Windows教程

dell 电脑重新装系统提示:“Operating system loader failed signature verification . WARNING: The file may have been tampered with! All bootable devices failed Secure Boot Verification”

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dell 电脑重新装系统提示:“Operating system loader failed signature verification . WARNING: The file may have been tampered with! All bootable devices failed Secure Boot Verification” 解...