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BrandonBrooks's avatar
BrandonBrooks
Iron Contributor
Feb 25, 2025

Windows 11 24H2 Failed to Install. How to Reinstall from USB Drive?

My unsupported PC is currently running Windows 11 22H2 and want to upgrade to the latest 2H2. So I downloaded the 24H2 ISO from the Microsoft website, mounted the ISO file and run the setup.exe. Howe...
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DylanEdwards's avatar
DylanEdwards
Iron Contributor
Feb 25, 2025

If you're using a USB or ISO file to reinstall Windows 11, the installation media might be corrupted or improperly created. This is a common issue when installing Windows 11 24H2. 

How to Fix Windows 11 24H2 Failed to Install

1. Verify the ISO File: If you downloaded the Windows 11 ISO file from an unofficial source, it might be corrupted or incomplete. Always download the official Windows 11 ISO from Microsoft’s website or use the Media Creation Tool.

2. Use the Media Creation Tool: Microsoft provides a free tool to create bootable installation media for Windows 11. Insert a USB flash drive (at least 8GB). Select USB flash drive and choose your USB drive from the list. The tool will format the USB drive and copy the installation files.

3. Format the USB Drive Properly: If you’re using a USB drive, ensure it’s formatted correctly before creating the bootable media. Steps:

  1. Insert the USB drive into your computer.
  2. Open Disk Management (right-click on the Start menu and select Disk Management).
  3. Locate your USB drive, right-click it, and select Format.
  4. Choose FAT32 as the file system (Windows 11 installation media works best with FAT32).
  5. Complete the formatting process.

This is a very way to reinstall Windows 11 if Windows 11 24H2 failed to install on unsupported hardware.

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