It seems like you encountered some challenges during the Windows 7 installation process related to the partition size and your Nvidia RAID 0 setup. Here's a summary of the issues you faced and how you overcame them: 1. Partition Size Issue: You noticed that Windows 7 installation doesn't work properly if the partition size is exactly 2 TB. To overcome this, you adjusted the partition size to 2 TB minus around 4 GB, setting it to 2 TB - 7 GB. 2. Installation Failure with Nvidia RAID 0 Setup: While attempting the installation on your Nvidia RAID 0 setup, you encountered failures during the reboot before the installation completed. This issue was related to a file that could not be found or was corrupt. 3. Backup and Restore Process: To address the installation issues, you decided to run a Vista 64 backup and restore it without activating the RAID setup. During this process, the Vista backup software notified you that the partition couldn't be backed up due to its size. 4. Upgrade Decision: Despite the challenges faced, you opted for an upgrade installation rather than a fresh install. This decision was driven by the desire to retain the existing programs and settings without the need to recreate them. Your experience and solution could indeed be valuable to others experiencing similar issues during the Windows 7 installation process. It's great that you were able to navigate through these obstacles and successfully upgrade your system. Thank you for sharing your insights, as it might help others facing similar difficulties.