Answer
This isn’t something that can be turned off (unless you manually do it per-game), and happens for two (main) reasons:
- The game had some form of error occur while downloading, so it’s been scheduled for a few minutes time to try again.
- The game’s update has just gone live – and steam cannot handle thousands of people all downloading it at the same time, so it staggers the various updates to ensure that everyone is able to get a fast and reliable download.
Attribution
Source : Link , Question Author : Pavel Vlasov , Answer Author : Crafter0800