To run version 1511, your device generally needs the following minimum specifications: Processor: 1 GHz or faster. 1 GB for 32-bit or 2 GB for 64-bit. Hard Disk Space: 16 GB for 32-bit OS or 20 GB for 64-bit OS. DirectX 9 or later with WDDM 1.0 driver. 800 x 600 minimum resolution. How to Obtain the ISO
It is obsolete, insecure, and unsupported. windows 10 version 1511 build 10586 iso