My Bootable Pendrive Is Not Detecting

A bootable pendrive may not be detected in Windows, BIOS, UEFI, or the boot menu because of bad ports, wrong boot mode, damaged media, or incorrect creation method.

Understand the problem

Bootable USB media must match the target computer firmware. UEFI systems usually need a FAT32 EFI-compatible layout, while older systems may require Legacy boot support.

• Confirm the exact disk, partition, file system, Windows version, boot mode, or sync setting before making changes.
• Back up or recover important files before wiping, formatting, converting, cloning, reinstalling, or repairing Windows.
• For boot and update tasks, prepare recovery media and check BIOS or UEFI settings before deeper repair.

Use Windows built-in tools

Check detection step by step.

1. Try another USB port and another computer.
2. Check Disk Management to see whether the pendrive appears.
3. Recreate the bootable USB with the correct UEFI or Legacy option.
4. Check BIOS or UEFI boot order and Secure Boot settings.
5. Replace the pendrive if it disconnects or shows wrong capacity.

Use Qiling tools for guided steps

Qiling Disk Master

Create bootable media again with the correct USB device and boot mode.

• Free Download
• Windows 11/10/8.1/8/7, 100% Secure

Function. Create bootable media for repair or recovery

Step 1. Prepare an empty USB drive. Back up existing USB files because the drive may be formatted.

Step 2. Open Qiling Disk Master and choose Create Bootable Media.

Step 3. Select the USB boot device option, then choose the correct USB drive by capacity and drive letter.

Step 4. Click Proceed and wait for the media to be created. Use it for boot repair, installation, or recovery when the old pendrive is not detected.

Check the result

Open the boot menu and confirm the pendrive appears under the correct UEFI or USB entry. Test it before relying on it for repair.

Related Articles

• Windows Not Detecting USB
  Fix USB devices that do not appear in Windows.
• Boot from Media
  Boot from USB, CD, or recovery media with the right firmware settings.

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