Hi everyone i wanted to ask some things which are quite confusing. The more i search Google, the more confusing it makes. 1. What is this build number thing? Whenever i search windows 10, i come with a new build number with a change log. This build number crap is about the windows 10 preview versions or the RTM? 2. Windows 10 RTM, is it not the final build or Microsoft is continuously producing new build versions of RTM. 3. I am trying to find the ISO for clean install of windows 10 on my laptop. I have an i3, 4gb ram machine and i know it can sustain the windows 10 but then why is it so confusing just to install a simple OS (clean install) and encountering so many build numbers.