[GUIDE] How to get Win7 clean installed onto an NVMe SSD - OS related Topics / Windows 7/Vista/Server 2008 - Win-Raid Forum (level1techs.com)
Recommended AHCI/RAID and NVMe Drivers - Important Drivers (AHCI/RAID, NVMe, USB etc.) / General: Storage Drivers (AHCI/RAID, NVMe and USB) - Win-Raid Forum (level1techs.com)
Not all models of NVMe drives in the market have or use a specific NVme driver, you can try the generic MS from the hotfixes