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#11
With a netbook that had upgraded to Win10 , I had the same problem, the next Build would not install. It was Originally Upgraded and updated during Install via Wifi , but I had it connected via Cat5 thinking it was faster and it would not Upgrade ( .380 I think it was?) failed every time, I switched Wifi back on and disable the Ethernet and the Update immediately Ran and updated to the .420 build .
Can't explain it but it worked for that particular Computer....