Win10 th2 update failure solution

                                                                                                                                                                                         Check if the postponement upgrade is set.
The problem of not receiving pushes may be due to the fact that your system has just been upgraded from the old versions of Win7, Win8.1, etc., and is still in the month of "experience period". In order to ensure that you can return to the previous version when you repent, Microsoft does not push the TH2 update for the time being;

Another reason may be that you have selected "delay upgrade" in the system, as follows As shown in the figure, if you are sure that this option is checked, please cancel and try again.
There may be insufficient space or SD card to cause
About installation errors. Please try to make enough space for the system partition. If you have upgraded the system before, you can clean it up. You can use the cleaning software to complete it. Deep cleanup can also be performed.

Another situation may be caused by Microsoft's already discovered SD card causing installation failures, especially for tablet devices. Please remove the SD card from the device.
Download the image upgrade yourself
If you can't find the reason, the best way is to download the image to upgrade. Even with Windows Update, the system needs to download a complete system image, except that ESD is smaller than ISO.
The only thing you need to pay attention to when downloading the image upgrade yourself is the version correspondence. Make sure that the downloaded image is consistent with the version of the system you are using. And note that the Chinese version of Home and family are two different versions of