This thread contains 3 options that would help fix error code 0x80240fff / 0x8007045b while updating Windows 10. Learn more?
Method 1: make sure Defer upgrades has been enabled One more thing: remove anything that is plugged into a USB except display, Keyboard and Mouse. Meantime, perform system file check by running SFC /scannow . Please note that, Windows 10 Home users (Home + Home SL): there is NO "Defer Upgrades" option, then try upgrading your system with Media Creation Tool@ www.microsoft.com/en-us/software-download/windows10 Running some Windows 10 Insider Preview build, such as 14379? Run Windows Update troubleshooter make sure Background Intelligent Transfer Service (BITS) has been enabled and started.