Secure Boot is a security feature designed to ensure that a computer boots only using trusted software. It is part of the UEFI (Unified Extensible Firmware Interface) and helps protect against malware and unauthorized software execution during startup.
How Secure Boot Works
- Verification Process: When the system starts, Secure Boot checks the digital signatures of the firmware and bootloader.
- Trusted Software Execution: Only software signed by a trusted authority (such as Microsoft or the device manufacturer) is allowed to run.
- Prevention of Unauthorized Code: If an untrusted or modified bootloader is detected, the system prevents it from executing, reducing the risk of malware infections.
Benefits of Secure Boot
- Protects against boot-time malware and rootkits.
- Ensures only trusted operating systems and drivers load.
- Enhances system integrity and security.
Potential Downsides
- Can restrict the installation of unsigned software or alternative operating systems.
- May need to be disabled for dual-booting with Linux or other OS configurations
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