Software⏱️ 3 min read📅 2026-06-15

How to Fix: Windows 8 Pro 64 bit RTM install error

Windows installation error on 64-bit RTM edition

Quick Answer: Check the system configuration and ensure that the CPU is compatible with Windows 8, as Intel Core i5-2400 may not support it.

📋 Table of Contents

  1. 💡 Why You Are Getting This Error
  2. 🛠️ Step-by-Step Verified Fixes
  3. 💡 Conclusion

Windows 8 Pro 64-bit RTM installation error can be frustrating, especially when using a USB flash drive. This issue affects users who are trying to install Windows 8 Pro 64-bit RTM on their machines, resulting in an error message after the 'Getting Devices Ready' stage.

This problem is particularly vexing because it prevents users from completing the installation process, forcing them to revert to a previous operating system or seek alternative solutions. In this guide, we will explore possible causes and provide step-by-step instructions for resolving the issue.

💡 Why You Are Getting This Error

  • The primary cause of this error is related to hardware incompatibility between the USB flash drive and the computer's UEFI firmware. This can be due to the lack of support for FAT32 file system on newer UEFI systems or incorrect UEFI settings.
  • Another possible cause could be issues with the USB flash drive itself, such as a corrupted ISO image or an incompatible hardware configuration.

🛠️ Step-by-Step Verified Fixes

Using a Bootable USB Drive from VirtualBox

  1. Step 1: Create a new virtual machine in VirtualBox and select the Windows 8 Pro 64-bit RTM installation media. Make sure to use the same ISO image that works in VirtualBox.
  2. Step 2: Copy the contents of the virtual machine's CD/DVD drive to a USB flash drive using VirtualBox's built-in tool or an external USB cloning software.
  3. Step 3: Insert the bootable USB drive into your computer and restart it. Enter the UEFI settings (usually by pressing F2, F12, or Del during boot-up) and set the USB drive as the first device to boot from.

Updating UEFI Firmware

  1. Step 1: Check with the computer manufacturer for any available firmware updates. Some systems may require a specific update to support FAT32 file system.
  2. Step 2: Download and install the latest UEFI firmware update. Follow the instructions provided by the manufacturer to update the firmware.

💡 Conclusion

If you have tried both methods without success, it is recommended to seek further assistance from the computer manufacturer or a professional technician. Additionally, ensure that your USB flash drive is compatible with your system and that the ISO image is not corrupted. By following these steps, you should be able to resolve the Windows 8 Pro 64-bit RTM installation error.

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