Guys I need help.
My desktop pc (HP Touchsmart 300) broke down and the technician told me to change the disk. He changed the hard drive and installed again Win7 Home Premium. A fiew days ago, I did a clean Windows install, by downloading the .iso file file from the web (Microsoft's webpage I think). I burned it to a disk and I started the installation. When i asked for a Serial Number, I wrote...
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