iSumsoft»Computer Tweaks » Guide to Disable “Secure Boot” Option from BIOS: Improve the Performance and Security of System Easily

Guide to Disable “Secure Boot” Option from BIOS: Improve the Performance and Security of System Easily

Lucas Watson
Lucas Watson

Updated:

BIOS (Basic input output system), as an essential part of computer hardware, is responsible for the boot for OS and POST (Power On Self Test). The “Secure Boot” option is an important function in BIOS, it can prevent your computer from penetration by malware and viruses. However, it can bring better system performance and convenience for some geeks by disabling the “Secure Boot” option. This post will introduce something on “Secure Boot” option.


1. How does Secure Boot Work in BIOS?

When the motherboard leaves the factory with the built-in reliable public key provided by OEM (original equipment manufacturer), other operating systems or hardware drivers that want to load on the motherboard must pass the authentication of these public keys. That is to say, other software must be authenticated with the public key, otherwise, the mainboard refuses to load, so the malware cannot pass the authentication and there is no way to infect the boot, but it can only do it when the computer bootloader is modified by the virus, it will give a reminder and refuse to start, to avoid possible further losses.

security-and-anti-virus-on-computer

2. Is It Necessary to Turn Off the Secure Boot Option?

Secure Boot is usually enabled by default, if your computer is Windows 8 or above, then if the Secure Boot option is disabled, your computer will not boot normally, because Microsoft stipulates that computers with Windows 8 and above must have the Secure Boot option enabled. That is to say, when you're reinstalling the system, if you enable Secure Boot, in the process of reinstalling the system, other systems cannot be successfully paired with the public key of the Windows 8, which will cause the reinstallation system to fail, and when the Secure Boot is turned off, the original Windows 8 will not be able to be used and needs to be reinstalled. If you need to install Windows 7, Windows XP, Linux, or other special needs, you can disable the Secure Boot option. For the security of the system, it is generally recommended to keep Secure Boot on, if there are other requirements, you can also turn it off according to the actual situation, the following will explain how to disable the Secure Boot option.

3. How to Disable the Secure Boot Option?

Step 1. Entering the BIOS Settings. After press the power button, Press “Delete” or “F2” (“F12” etc.) down quickly when the splash screen shows up. (As motherboard brands of different enter BIOS interface also vary).

enter-bios-by-keyboard

Step 2. After get in BIOS, search for “Boot” or “Startup” menu, then select “Security” or “Setup” option.

find-the-security-menu

Step 3. Find “Secure Boot” option on “Security” or “Setup” menu.

Step 4. Select “Secure Boot” option and set it to “Disabled” or “Off”.

disable-secure-boot-option

Step 5. Save settings and quit BIOS. The “Secure Boot” option is already disabled after your computer restart.

4. Precautions and Risks after Disable the “Secure Boot” Option.

Firstly, after disable the “Secure Boot” option, your computer will no longer scan malware and virus in boot devices, please ensure your computer already install reliable antivirus software before you turn off the “Secure Boot” option.

Secondly, it may decrease the security level of your computer after disable the “Secure Boot” option, please well understand related risks before you disable the “Secure Boot” option and ensure you have certain level of IT skills.

security-decrease-after-diasble-secure-boot

Last but not least, if you suspect that your system has been attacked by malware or viruses, please take immediate measures to repair your system to avoid data loss or system crashes. After switch off “Secure Boot” option, we suggest you update your system and software regularly to ensure your computer system always keep up-to-date and improve its security.

5. How to Improve the Performance and Security of System?

Step 1. Turn-off unnecessary autorun items: Disable unnecessary autorun items through system settings or third-party software to improve the startup speed of your computer system.

speed-up-your-computer

Step 2. Check system drives regularly: update system drives to ensure the hardware operate best.

Step 3. OS optimization: manage your computer system by third-party system optimization software to improve it operate efficiency.

Step 4. Keep the anti-virus software up-to-date: install reliable Antivirus software and turn up its real-time monitoring system protection option.

Step 5. Back up data: Back-up your key data regularly to avoid data loss.

data-buckup

Users can improve the performance and convenience of your computer by switch off the “Secure Boot” option, whereas the security level of your system maybe decrease, so please well understand related risks before you disable the “Secure boot” option and ensure you have certain level of IT skills. Please pay close attention to system security and take measures in time to prevent potential risks after you disabled the “Secure Boot” option.