Fix Windows 10 Upgrade Error 80240020 – Failed Update
Command: wuauclt.exe /updatenow
Alternative Method: http://www.microsoft.com/en-us/software-download/windows10
Alternative Method Demonstration: https://www.youtube.com/watch?v=sSmANi2hTTc
The 80240020 error happens usually when the Windows 10 files that you downloaded was not complete and the setup process still tried to do the upgrade to Windows 10. Or it could be that your Windows 10 installation folder is unfinished or corrupted.
This tutorial will apply for computers, laptops, desktops,and tablets running the Windows 10 operating system (Home, Professional, Enterprise, Education) from all supported hardware manufactures, like Dell, HP, Acer, Asus, Toshiba,Lenovo, and Samsung).
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