Reference chart for update branches on Windows 10: en.wikipedia.org/wiki/Windows_10#Update_and_support_system How do previous versions of Windows (W7 and W8.1) compare against to the Windows 10 branches in the table? Doesn't regular Win 8.1 (ie Home and Pro) allow indefinite delay of critical updates AND feature upgrades? Windows 10 looks like a massive downgrade in this respect since only LTSB allows for that. Another concern I see is Enterprise edition/Enterprise LTSB can delay/disable "feature upgrades", which is nice 99% of the time because most Enterprise users probably don't want to deal with that app/app store and other Microsoft crap intro'd in Win 10. However, how about, for example, if Microsoft releases the ability to customize the left side of Start menu aka the stupid "most recent" section? That does not sound like a critical update to me, would it be released as a feature upgrade? This might mean Enterprise users could be the last group to get productivity-improvements similar to this.