In Windows 7, you can set a three-layer password to enhance security, and these three layers of password usually include the system user password, the system boot password, and the BIOS password. Here are the steps to set up these three layers of passwords:
1.Set System User Password:
Tap the "Start" button and then "Control Panel".
In the Control Panel, click on "User Accounts".
In the User Account window, click on "Create a password for your account".
Enter and confirm the new password and click the "Create Password" button.
2.Set a system boot password:
Press the win key + R key to open the run dialog box.
Enter "syskey" in the run dialog box and press enter.
In the pop-up "Protect the security of Windows account database" window, click "Update".
In the pop-up Boot Key window, select the Password Boot option.
Enter and confirm the activation password, and click the "OK" button.
3.Set BIOS password:
Restart your computer and enter the BIOS settings by pressing the DEL key (or the corresponding key as prompted on the screen) while booting up.
Use the arrow keys on your keyboard to move the cursor to the "Advanced BIOS Features" option and press enter.
Find the "Security Option" or "Password Check" option and set it to "System".
Press the Esc key to return to the main interface and move the cursor to the "Set Supervisor Password" option.
Enter and confirm the BIOS password in the window that appears, press enter to save the settings.
After completing the above steps, your Windows 7 system will set up a three-layer password. Every time you boot up your computer, you need to enter the BIOS password to enter the system, then enter the system user password on the login screen, and finally enter the system boot password when you start Windows. This effectively protects your computer from unauthorized access.