I have an HP probook that had Windows 7 Pro installed on it. The whole hdd somehow got corrupted, I could not even boot from a recovery partition (I think because I shrunk C: and created a D: too and it created a wierd partitioning system). I had to use a Linux live CD to erase all partitions because even my Windows 7 Pro CD could not see the partitions when I got to that part of install. Upon installing the same exact version of Windows on the same exact computer I entered the product code that was under the battery of all stupid places. Then is does not activate and tells me I can activate by phone? huh. So I did everything phone told me and Windows is activated fine... BUT why when I have a valid product key does it fail until I use the phone activation?