Use Snappy Driver Installer (SDI) offline or search for drivers specifically for Windows 8.1 – many are compatible. Avoid automatic driver tools.
Graphics drivers from NVIDIA, AMD, or Intel (post-2018) will not install. You are limited to drivers released in 2015 or earlier. This means newer GPUs, Wi-Fi 6 adapters, and NVMe SSDs may be unrecognized. windows 10 version 2015 iso
If you have an active MSDN or Visual Studio Enterprise subscription, you can download original Windows 10 ISOs, including version 1507, from the subscriber downloads portal. Use Snappy Driver Installer (SDI) offline or search
Download drivers from 2015–2016 for your hardware. Never use modern driver packages (they often require at least Windows 10 Version 1803). Graphics drivers from NVIDIA, AMD, or Intel (post-2018)
There are very few practical reasons for a general user to install the original 2015 version today, as it is considered obsolete. However, specific use cases remain: