I was playing around with PSUs yesterday and temporarily 'borrowed' the PSU from my old Dell Inspiron 530 to test it with another system.
After confirming that it worked on the other system, I replaced it back in the Dell 530 when I realised that the 250GB hard disk in the Dell was actually running Windows 7 (the Dell was originally installed with Vista, but I later installed Windows 7 Ultimate many years ago using a Retail product key).
I decided this would be a good chance to see if the Windows 10 Upgrade offer was still working, so I booted from my E2B drive (an Inateck FE2007) to a Windows 10 Pro TH2 VHD, typed in the Windows 7 Product Key (which I had obtained using ShowKeyPlus previously) - and voila! I had one activated Windows 10 Pro system.
So as of 2016-08-05, I can confirm that you can still use a Win7 retail product key to activate Windows 10.
So, I booted to E2B and selected the Windows 10 ISO (actually the latest 'Anniversary' version) and got to the Disk\Partition selection screen as usual. BUT I then got stuck on a problem - Setup refused to install Windows onto the internal hard disk!
Every time I got the message: 'We couldn't create a new partition or locate an existing partition'.
Dell Inspiron 530
After confirming that it worked on the other system, I replaced it back in the Dell 530 when I realised that the 250GB hard disk in the Dell was actually running Windows 7 (the Dell was originally installed with Vista, but I later installed Windows 7 Ultimate many years ago using a Retail product key).
I decided this would be a good chance to see if the Windows 10 Upgrade offer was still working, so I booted from my E2B drive (an Inateck FE2007) to a Windows 10 Pro TH2 VHD, typed in the Windows 7 Product Key (which I had obtained using ShowKeyPlus previously) - and voila! I had one activated Windows 10 Pro system.
So as of 2016-08-05, I can confirm that you can still use a Win7 retail product key to activate Windows 10.
Problems installing Windows 10!
I decided to do a fresh install of Windows 10 from an ISO file using my E2B hard disk (FE2007 + Samsung SSD) and a 'Helper' USB flash drive. As you may know, if E2B is on a hard disk, we need to add a Removable USB drive so that Windows will 'pick up' the AutoUnattend.xml file from the Removable drive during Setup and that we can make ImDisk run and load the ISO as a virtual DVD drive. The FE2007 hard disk enclosure has three USB 3.0 ports built in, so the flash drive is always connected to the E2B hard disk.So, I booted to E2B and selected the Windows 10 ISO (actually the latest 'Anniversary' version) and got to the Disk\Partition selection screen as usual. BUT I then got stuck on a problem - Setup refused to install Windows onto the internal hard disk!
Every time I got the message: 'We couldn't create a new partition or locate an existing partition'.