Troubleshooting USB Boot Issues on Lenovo Legion Y720

Booting from a USB on a Lenovo Legion Y720 can be hindered by a variety of factors. This guide is designed to help you diagnose and fix common issues that prevent your system from booting from a USB drive.

Common Reasons and Solutions

The process of booting from a USB can be affected by several factors. Here are some common reasons and solutions to help you get your Lenovo Legion Y720 booting from USB.

Bios/UEFI Settings

The BIOS or UEFI settings play a crucial role in booting from a USB drive. Here are the steps to access and adjust your BIOS/UEFI settings:

Accessing BIOS/UEFI:
Restart your laptop and press Fn F2 or F2 during the boot process to enter the BIOS/UEFI settings. Boot Order:
Ensure that the USB drive is set as the first boot device in the BIOS. Look for an option to enable Legacy Support or CSM Compatibility Support Module if your USB drive is not recognized.

Secure Boot

Secure Boot can be a common culprit in preventing booting from an unrecognized USB drive. Here’s how to disable it:

Disable Secure Boot:
In the BIOS/UEFI settings, find the Secure Boot option and disable it. This will allow your system to recognize and boot from unrecognized USB drives.

USB Drive Issues

Several factors related to the USB drive itself can prevent it from booting:

File System:
Ensure the USB drive is formatted correctly. FAT32 is often recommended for UEFI systems. Bootable USB Creation:
Make sure the USB drive is properly created as a bootable device using tools like Rufus or Etcher.

USB Port Issues

Sometimes, certain USB ports may not function correctly during boot. Here's what you can do:

Try Different Ports:
Try using a different USB port, preferably a USB 2.0 port if available. This can help rule out hardware issues with your current USB port.

Faulty USB Drive

There might be a problem with the USB drive itself.

Test the USB Drive:
Test the USB drive by plugging it into another computer and attempting to boot from it. If it does not work, the issue is likely with the USB drive itself.

Fast Startup

Fast startup can prevent your system from booting from a USB drive. Here’s how to disable it:

Disable Fast Startup:
In Windows, go to the power options and disable fast startup. This can help ensure that your system boots correctly from a USB drive.

Update BIOS

If the above solutions do not work, consider checking Lenovo’s support site for any available BIOS updates. These updates might address any bugs or issues related to USB booting:

Check for Updates:
Visit Lenovo’s support website and look for BIOS updates that might resolve your USB booting issues.

Summary

To resolve USB boot issues on a Lenovo Legion Y720, follow these steps:

Ensure the USB drive is properly formatted and created as a bootable device. Adjust BIOS settings to prioritize USB booting. Disable Secure Boot. Try different USB ports. If issues persist, troubleshoot the USB drive itself or update the BIOS.

By following these steps, you should be able to resolve most USB booting issues on your Lenovo Legion Y720. If you’re still facing issues, consider seeking additional support from Lenovo or a professional technician.