Beginning november 2015 Microsoft released the first major update for Windows 10 dubbed the Fall Update or version 1511 build 10586. Unfortunately, some users have complained that they do not see it via Windows Update Mechanism. There could be a valid reason that you don’t get the update. One could be that you have installed windows 10 just before the latest update was released in which case you have to wait 31 days before you can update to version 1511 build 10586 as that is the period one has, to revert back to the previous install of windows you had before installing windows 10. Updating to build 1511 would immediately break that ability. That is why Microsoft has a build in a check and presents you the next mayor update once that period of downgrading has expired.
Another reason why you don’t see the latest upgrade could be that you have disabled the upgrade ability in the system update options. If however none of these are the case some websites advised and even Microsoft did so, that one should use the Media Creation Tool. But using the Media Creation Tool (MCT) won’t work anymore as Microsoft is distributing the original windows 10 first release iso file in the MCT (July 29 build 10240 release of Windows 10). It used to work for a couple of days but that has been reverted by Microsoft because there were some issues with the latest update version 1511 build 10586 privacy settings which after updating appeared to have changed. Running the MCT install will result in the same build as before leaving you still with the same problem that the update you want to install does not appear in your windows update page.
Many users are reporting that their computers don’t get the update on their pc’s even on those on which the 31 days of downgrade ability has expired and on pc’s where they also did not turn off the upgrade ability of windows 10. If that’s what’s happening to you? then here is how to upgrade your PC manually.
Now the only way left to update is using the original windows 10 (version 1511 build 10586) latest build iso file which can be downloaded here and force the update on your windows system. : Download at Microsoft
You can choose update now or download the media creation tool. In both cases a file will be downloaded. Store it on your desktop and start that program by double clicking it and follow the instructions on your screen. If you use the media creation tool you can create a media for another device or choose you want to update this pc. Please choose the latter.
The update process will now start and once completed you will have windows 10 latest build (in my case version 1511 build 10586) installed.
Note: You will notice on your system boot drive that there is a windows.old folder as you installed a complete new version of windows 10. You can remove it following this thread if you feel that it is safe to do so. Remove windows.old folder