If you are on Fast Ring on Windows 10 Insider for Windows 10, you should be receiving another Windows 10 build version 17107. This for Redstone 4 users, and it majorly focuses on fixing bugs, and improve the Update Experience. This will be coming to all with Windows 10 Spring Update. Dona Sarkar shared :
In an effort to prevent PCs from becoming out of date, we are introducing a change in behavior to Windows Update that is designed to be more proactive in keeping PCs updated.
In RS4, now when Windows Update scans, downloads, and installs on a PC with AC power – it will prevent the PC from going to sleep when it is not in active use, for up to 2 hours when receiving an update in order to give Windows Update more opportunity to succeed. If you are not seeing this new behavior, let us know by sending in feedback via Feedback Hub.
In simple words, if you are running a desktop or your Laptop is on AC power, PC will not go to sleep unless the update is complete. This will make sure that update process is not interrupted in between. While it increases the percentage of successful update in one go, if your network causes a problem, you will have to start downloading again as there is no resume. Microsoft is working on this feature as well, and we should see it happening soon.