XP Pro moved to new HD -licensing err

Trying to move my XP Pro SP1 system to a new hard drive in the same computer. When booting, just before the logon prompt – it comes up with an error “problem checking license for this computer – code 0x80090006”. How can i fix, or reinstall without lossing settings? i still have the original copy to work from – that boots fine. Some kind of system recovery process, i assume – but when i run backup, ASR wizard- it starts working with the floppy, but when it fills up – says “tape is full”! ineed another method…