this happened to me aswell that i cant download my pc was hp pavilon 15 sleekbook laptop with touchscreen and it has core i3, nvidia geforce gt wich is popular graphics card for me so i got windows 10 icon and i reserved it but in 29 i seem had problems i cant upgrade so i had to delete inside in C:\Windows\SoftwareDistrubiution\Download\ if it is correct and i think its safe beacuse that what they said beacuse that where updates will go and aswell i had backup drive if something goes wrong so i can be back to 8 then 8.1 and to 10 just only it will take longer to do