Hi, I have had to do clean installs on several new hd for win 8, but this time I'm a little baffled. I got in a dell with a oem win 8 or 8.1 (not sure) install, dead hd. I replaced it and switched to legacy boot to boot to my win 8.1 retail dvd, used generic key, it installed fine.... then when I run rw-everything like usual to get the actual bios key to activate there is no msdn tab. ...OK, so I hunt down the key from the limping old drive with jelly bean, got it... it won't activate, called msft they say its a bad key. AGH, sooo what did I screw up here? This is a genuine win 8 installed laptop, very new. Do I have to install win 8 first but the key I recovered is invalid, stumped.