Secure boot is a security feature of Windows that helps protect your computer from malware. It works by ensuring that only signed, trusted software can run on your PC. Secure boot is enabled by default on all new Windows PCs, but you can disable it if you need to.
If you're not sure whether your PC has secure boot, you can check in the BIOS or UEFI settings. To do so, restart your PC and look for a message that says "Press [key] to enter BIOS/UEFI." The key is usually F2, F8, F12, or Esc. Once you're in the BIOS or UEFI settings, look for a secure boot or UEFI Boot Order option and make sure it's enabled.
If you're not sure how to change your BIOS or UEFI settings, you'll need to consult your PC's manual or contact the manufacturer.