Win 7 NVMe compatibility
Are there any issues with running Windows 7 on a Samsung NVMe™ M.2 SSD?
Samsung NVMe™ SSDs are compatible with Windows 7, but for optimal performance and ease of use we recommend Windows 10 or newer.
If attempting to utilize an M.2 NVMe SSD for bootable OS please refer to Microsoft's article for the NVMe hotfix. How to obtain this hotfix