Tonight I attempted to upgrade my Windows 7 Pro desktop PC to Windows 10 and it failed with an error code of 8007005. Can anyone help me resolve this issue? Windows 10 downloaded and then it took a long time to get through the "Preparing for Installation" step and then the install just failed when this step reached 100%. I'm trying to run the upgrade again but if it fails, I'm stuck. Any help would be greatly appreciated.