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How to re-install W10 without losing activation key
After a spectacular crash on my Acer Aspire laptop, I spent several hours on MS Chat who were as helpful as possible. However, the conclusion was that a re-installation was necessary. I downloaded the .iso advised by MS and formatted a USB device ready to boot.
However, I don't have any previous installation media and no record of a key because it was a free upgrade from Windows 7. How do I go about re-installing without losing the registered activation please?