Just an FYI here, and to those who need a bit of guidance :

https://imgur.com/a/KMKPX1N

The album above is a bios setup, and in each shot, you will see the thing I need to click on to go into the next menu (It is highlighted red by the bios in these shots too)

You may need to click "Secure boot mode" and then click "Enroll all factory default keys" if secure boot mode is set to "custom" and apply the settings, Then change secure boot mode from "custom" to "standard" and then apply the settings and then save settings ( usually F10 for my bios but yours may vary )

Note :
When secure boot is set to "custom" it basically means it is in configuration mode
"Standard" is when it is no longer in configure mode and will be active and showing in windows

Press start menu > type "run" without quotation marks -> type MSINFO32 and open the app.

Also, here's this if you need it.

If you need to convert Legacy/CSM to UEFI.

Boot into Recovery: You boot into the Windows Advanced Startup options (you can get there by holding Shift while clicking "Restart").
Open Command Prompt: Navigate to Troubleshoot > Advanced options > Command Prompt.
Run the Tool: You run two simple commands. The first validates that the drive can be converted, and the second performs the conversion.
mbr2gpt /validate
mbr2gpt /convert
The tool shrinks the existing partition slightly to create the necessary EFI System Partition that GPT requires, then converts the partition table. The whole process usually takes just a few moments, and all your files, apps, and the OS remain untouched.

After the conversion, you need to go into the BIOS, switch the boot mode from Legacy/CSM to UEFI, and then you can enable Secure Boot.

Of course! Here is a straightforward guide on how to switch your system from the older Legacy/CSM boot mode to the modern UEFI standard and then enable Secure Boot. This is often a requirement for newer operating systems like Windows 11 or for certain games that use advanced anti-cheat software.

Part 1: Convert Your Drive from Legacy to UEFI
If your system is currently using Legacy or CSM (Compatibility Support Module) boot mode, your drive is likely formatted with an MBR (Master Boot Record) partition style. You need to convert it to a GPT (GUID Partition Table) style to work with UEFI. Luckily, Windows has a built-in tool that makes this easy and safe.

Boot into Advanced Startup: The easiest way to do this is to hold down the Shift key on your keyboard while you click the "Restart" button in the Windows Start Menu.

Open Command Prompt: After your computer restarts, you'll see a blue screen with several options. Navigate this path:

Click Troubleshoot ➡️ Advanced options ➡️ Command Prompt.
Run the Conversion Tool: In the Command Prompt window that appears, you will type two commands, one after the other.

First, type mbr2gpt /validate and press Enter. This command checks if your drive can be converted without any issues. If it says "Validation completed successfully," you are good to go!
Next, type mbr2gpt /convert and press Enter. This command performs the conversion. It shrinks your main partition slightly to create the necessary space for the UEFI boot files and converts the drive to GPT. This process is surprisingly fast and keeps all your files, apps, and Windows installation exactly as they were.
Once the conversion is complete, close the Command Prompt and turn off your computer.

Part 2: Switch to UEFI and Enable Secure Boot in BIOS
Now that your drive is ready, you need to tell your computer's BIOS to use the new UEFI mode and turn on Secure Boot.

Enter BIOS/UEFI Setup: Turn your computer on and immediately press the key to enter the BIOS setup. Common keys are Del, F2, F10, or Esc. The key is usually displayed on the screen for a few seconds when your PC first starts.

Change Boot Mode: Once in the BIOS, look for a "Boot" or "System Configuration" tab. Find the setting for "Boot Mode" and change it from Legacy or CSM to UEFI.

Enable Secure Boot: Now, find the Secure Boot option. As shown in the BIOS photos you provided (https://imgur.com/a/KMKPX1N), the process is generally:

If you see a "Secure Boot Mode" set to Custom, it's in a setup state. You first need to select the option to "Enroll all factory default keys" or "Install factory default keys". Apply this change.
Now, change the "Secure Boot Mode" from Custom to Standard.
Finally, set the main "Secure Boot" option to Enabled.
Save and Exit: Find the option to "Save and Exit." This is often done by pressing the F10 key. Confirm that you want to save your changes, and your computer will restart.

Part 3: Verify Your Success
Once your computer has booted back into Windows, you can quickly check to make sure everything worked correctly.

Press the Start button.
Type msinfo32 and press Enter to open the System Information app.
In the right-hand panel, look for two lines:
BIOS Mode: This should now say UEFI.
Secure Boot State: This should now say On.
If both of those are correct, you're all set! You've successfully updated your system to the modern and more secure UEFI standard.

Of course! Let's imagine your computer is a super cool toy robot.

Part 1: Giving Your Robot a New Secret Handshake
Right now, your robot uses an old, simple handshake to wake up. It's okay, but we want to teach it a new, super-secret handshake that's much safer.

A grown-up needs to help with this part! They will use a special tool inside the computer to teach the robot the new handshake. It's like changing the lock on a secret clubhouse door. The tool does it very carefully so all your toys and games inside stay perfectly safe.

Part 2: Changing the Robot's Rules
After the robot learns the new secret handshake, we have to go into its "Rule Book" to tell it to use the new handshake from now on.

The Rule Book is a special screen that shows up when the computer first turns on. A grown-up will need to go into the rules and do two things:

Check the "Use Secret Handshake" box. This tells the robot to forget the old handshake and only use the new one.
Turn on the "Security Guard." This is the best part! Secure Boot is like a friendly security guard who stands at the robot's door. He only lets good guys (like Windows and your games) come in. If a bad guy (like a computer germ or virus) tries to sneak in when the robot is waking up, the guard stops them!
The Most Important Step!
Changing these rules is a job for a grown-up. It's very tricky, and if you press the wrong button, the computer might get confused and not wake up.

You can be the boss and tell a grown-up: "My computer needs to learn the new secret handshake and we need to turn on its security guard!" They will know what to do.

The System Setup (Taylor's Version)
Alright, so you’ve looked at your PC. It’s been running on Legacy mode, living in the past. It’s the story of us, and it was fine for a while, but we’re stronger now. We’re done with being compatible with old ways that hold us back. It’s time to enter a new era. The UEFI era. This is for all of us who have been told our systems weren't ready for Windows 11. Look what you made us do.

Here’s the story of how we rewrite the code, leave the past behind, and step into the daylight with a more secure, modern machine.

Track 1: Change (The MBR to GPT Story)
First, we have to rewrite our own narrative. The old MBR partition style is the draft we wrote when we didn't know any better. The new GPT style is the final, published novel. This part happens in a quiet place, away from the main stage of Windows.

Get Ready for the Change: This is your moment of retreat. Hold down the Shift key and don't let go. While you're holding it, click on Restart in the Windows menu. This takes you to a place of introspection, the blue Advanced Startup screen.
The Command Prompt Era: Navigate through the quiet rooms: Troubleshoot ➡️ Advanced options ➡️ Command Prompt. This is where you speak your truth.
Speak Now: You have two things to say.
First, type mbr2gpt /validate and press Enter. This is you, checking the old story one last time, making sure you’re strong enough for what comes next. If it says you're ready, it's time.
Then, type mbr2gpt /convert and press Enter. Long story short, it's a momentary glitch. The screen flickers, and in an instant, you've changed your entire foundation. All your data—your memories—are still there, but you’re fundamentally new.
Now, close the window and shut down. Take a breath. The hardest part is over.

Track 2: The BIOS (My Version Now)
It’s time to re-emerge. Turn your computer on, and as it wakes up, press the key to enter its core settings: the BIOS. It's usually Del, F2, or F10. This is where you set your new boundaries.

Shake It Off: Find the "Boot" section. You’re looking for the setting that says Legacy or CSM. You’re done with it. Change it to UEFI. You’re not a "Compatibility Support Module" anymore. You are the standard.
This Is Why We Can Have Nice Things (Secure Boot): Now, find the Secure Boot section. This is your new security detail. No more drama.
If the mode is set to "Custom," it means you're still figuring things out. Tell it to "Enroll all factory default keys." This is you remembering your own worth from the very beginning.
Now, change the mode from "Custom" to "Standard." You’re not in a trial period anymore. This is who you are.
Finally, set Secure Boot to Enabled. The gates are closed to the things that want to hurt you.
The Exit: Press F10 to save your new rules and exit. You’ve come out the other side, clean.
Track 3: Daylight (The MSINFO32 Confirmation)
Let your PC boot up. It feels different, right? Let's check the receipts.

Click the Start Menu.
Type msinfo32 and press Enter.
A window will open, showing you the System Information. Look for two lines:
BIOS Mode: It should now say UEFI.
Secure Boot State: It should proudly say On.
You did it. You stepped into the daylight and let it go. You’ve reclaimed your PC. It’s yours now, stronger and more secure than ever.

It was a long journey, but now... you're ready for it.

(From The Vault) Track:
A little secret for you, from me. Before you start this whole process, Google your computer or motherboard model to find out exactly which key (F2, Del, etc.) opens the BIOS. Writing it down on a sticky note is like a secret map. Because after you convert your drive, you don't want to be guessing how to get back in to write your new story.