What is Secure Boot? (EXPLAINED)

What is Secure Boot?: Know about what Secure Boot is, why it matters, and how it works to protect your system from unauthorized access. By the end of this video, you'll have a solid understanding of what secure boot is.

Chapters:
[00:00] Introduction
[01:04] Secure Boot with Explanation
[02:25] Conclusion

Before we dive into the technical details, let's understand why Secure Boot is crucial in today's digital landscape. Imagine a world where any malicious software could easily hijack your computer during the boot process. Scary, right? That's where Secure Boot comes to the rescue!
Secure Boot is a security feature implemented in modern computer systems, including PCs and servers. It ensures that only trusted and authorized software is allowed to run during the boot-up process, protecting your system from malware, rootkits, and other unauthorized modifications.

All the definitions apart, let me tell you how Secure Boot actually works in simple terms.
Let’s say you have a secure boot enabled computer. You installed a Windows 11 operating system on it. This operating system is from a trusted source called Microsoft. Right?
When you boot the computer, this secure boot verifies the digital signatures of all the components involved in booting up your system. This includes the firmware, bootloader and operating system. These components must be signed with valid digital certificates issued by trusted parties, such as Microsoft or the system manufacturer. In this example, it passes the secure boot verification and the system boots up.

For example, when you build a custom operating system which is not digitally signed and you try to boot it with a secure boot enabled PC then it won’t pass you through. Because it doesn’t have a valid digital certificate issued by trusted parties. Secure boot will treat your custom designed operating system as Malware.

So, this secure boot will protect your computer when it is infected with malware to spread further to the files on the computer.

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[TechEmpty]

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[mahdyfouad]

Secure Boot only make it harder for us to try different os . hackers is the professional guys.

[fedexnman]

Microsoft doesn't want you running Linux . Microsoft also wanted to help PC manufacturers sell NEW systems during the pandemic . So enter secure boot and Windows 11 and the you PC cant run 11 . Lol

[netanel]

Your explanation is very clear, Thanks

[free_ho]

What if I want to boot Linux mint on an external hard drive through my PC? (my PC has windows 10 installed internally). Will secure boot stop any external operating systems from booting?

[SlayinstarOG]

Should i turn on secure boot? Will it effect boot time or something else ??

[directdeath]

I have lenevo laptop i want to enable secure boot so i reset to factory setting will it affect my laptop qarranty

[cqzwtus]

Great explanation. One question: Would it be better to whitelist the software rather than disable secure boot?

[donaldkeith]

That's it. I'm out. Back to Linux I go 🚶

[The-Bloat]

Is it recommended to turn on if i have a gaming pc?