I switched this Spring from Windows 7 to 8
I just replied but am not sure if you received it. By luck I suddenly found an confirmation email including a product key (in very tiny numbers and letters though) :-) I started Word, inserted the product key and Word continued normally.
I'd like to come back to you in a later stage, I want to see if all Office 2013 products now function normally and do not crash frequently as they did after initial on-line installation earlier this Spring. If not, I will be very happy.
Thanks a lot for your clear instructions! Pitty though that I didn't find that product key earlier.
Anyhow, I think my PC is now in a better shape then as it was before contacting you.