Secure Boot is an important element in your computer's security, and disabling it can leave you vulnerable to malware that can take over your PC and leave Windows inaccessible.
Why should I disable Secure Boot?
If you're running certain PC graphics cards, hardware, or operating systems such as Linux or previous version of Windows you may need to disable Secure Boot. Secure Boot helps to make sure that your PC boots using only firmware that is trusted by the manufacturer.
What is the purpose of Secure Boot?
When enabled and fully configured, Secure Boot helps a computer resist attacks and infection from malware. Secure Boot detects tampering with boot loaders, key operating system files, and unauthorized option ROMs by validating their digital signatures.