I followed the instructions for installing Windows 10 from Windows 7. I increased from 2GB to 3GB to be above the 2GB minimum. Everything was going smoothly. I did have to attach an external drive so it had somewhere to put the .tmp file created to allow restore. And I chose to bring across everything. It began copying files, and then it failed, returned me to Windows 7 and said it could not install Win 10, Error 0x80070070, "...failed in the SAFE_OS phase with an error during APPLY_IMAGE operation." Any thoughts?