You can also let Trend Micro Pros help out. We recommend checking your PC manufacturer’s support information on their website if you are hesitant to make any changes to enable UEFI/BIOS.ĭownload Trend Micro Windows 11 Upgrade Helper - it's FREE! If so, you will need to choose for UEFI to be the first or only option. In some PCs, there are options to enable both UEFI and Legacy/CSM. Update any bootable media and full backups.

Switch the PC boot mode from Legacy BIOS (or CSM Mode in some computers) to UEFI/BIOS (Unified Extensible Firmware Interface). Install the monthly servicing update released on May 9 or later on all of your Windows devices and reboot them before moving on to the next step.

On the next screen that appears, select Troubleshoot > Advanced options > UEFI Firmware Settings > Restart to make changes.

Under Advanced startup, choose Restart Now.

Click the Start, then go to Settings > Update & Security > Recovery.

This blocks malicious programs from running on your computer at system startup. Secure Boot is a security feature that ensures your computer boots up using only software that is trusted by its manufacturer.

It is also needed to upgrade to Windows 11. Turn ON Secure Boot to prevent malicious programs from loading as your computer starts up.

Windows 11 secure boot