1, in the WIN10 system we click on the desktop of this computer, and then go to find the C disk-windows folder as shown below
2, then open into the Windows directory to find the window/softwaredistribution/download/folder, we find the Download folder file and then delete all the files inside
3, OK now we go back to the desktop press the win+x on the keyboard, and then select the Command mode in the menu, as shown in the picture (admin)
4, in the Open CMD Admin mode we enter Wuauclt.exe/updatenow
5, then we on the desktop right click on this computer-properties-Control Panel, select the system update as shown in the following image
6, click to check for updates
7, win10 start to check your system
8, the beginning of the download, win10 system installation file download will be automatically upgraded to install the
Note that the upgrade installation will not affect your computer files and software, but there are some software incompatible win10 may run error, at this time we just use compatibility mode can be resolved.