two weeks ago I had a hard drive failure on the stated laptop. I installed an OCZ ssd and reinstalled windows 7 from a retail family pack. I used the Certificate of Authenticity (COA) windows key from the sticker on the HP laptop. This activated no problem. I purchased this laptop new at SAMS club. I also upgraded two desktop computers to windows 8 that also had this family pack copy of windows 7 installed on them (about a year ago). Both of these computers activated with no problem. I also installed a separate windows media player upgrade on each computer. I then upgraded the laptop to windows 8. I also upgraded it to windows media player. I noticed that the key provided during the upgrade was the same provided by Microsoft during the upgrade of one of the desktop computers. The validation was successful at first. A day later I got a message stating that windows was not genuine. I then attempted to purchase another key and Microsoft stated that I could not purchase a key in my current country or region (I am in Wisconsin). The website stated that I had to validate windows by purchasing a validation pack at a local retailer. Why cant I validate windows? I have the COA still attached and nothing is different about the computer except the replaced hard drive.