I've been trying to repair my Windows 7 Pro SP1 installation through the upgrade feature contained in the Windows DVD installation disc.
A few months ago ,I completely succeeded with such an operation with the same disc
Now, I want to do another repair and it fails everytime with this message:
Windows installation program was unable to set up Windows to run on this computer material.
It's then followed by another message:
Windows was unable to achieve the installation.To install Windows on this computer ,please run the installation program again.
Please note these quotes are my translation from French.