Boot from the USB, select your language, and choose "Custom: Install Windows only (advanced)." Delete existing partitions to ensure a clean environment. Product Key:
While the full OS installer is gone, Microsoft still hosts ISO images containing specific security updates from 2015: October 2015 Security Release 3.4 GB ISO containing security updates released in October 2015. March 2015 Security Release : Security updates for Windows released on March 10, 2015 January 2015 Security Release : Updates for various Windows versions released in early 2015 Third-Party Archives (Full OS ISOs) windows 10 version 2015 iso
Before you hunt down that ISO, understand what you do: Boot from the USB, select your language, and