This is not supported and there is no way to transfer that license. And this is NOT a fresh install. Just to cover that off the list.
Call Asus and ask if they have a workaround to avoid purchasing a new license.
I recently bought an Asus N55SL laptop. It came pre-installed with Win 7 Home Premium on a 750GB drive.
I bought a 120GB SSD, and would like to replace the HDD with it. The HDD came with a recovery partition on it, but I don't think that will help. When I started the laptop for the first time, I made Asus recovery disks that can be used to restore the laptop to factory conditions. However, when i try to use those to recover to the SSD, it appears to work, but when it's "setting up windows for first time use" it goes into a rebooting loop. I'm assuming that the disk image made by the recovery program on the 750gb HDD can't be applied to the 120gb SSD.
I've read that SSds work better with fresh installs of Windows anyway.
So, how can I install windows on my SSD using the Win 7 product key that came with my laptop? I tried installing another copy of Win7 Home Premium that I had, but the license key wouldn't work for it. I called Asus support but they didn't give me any useful info. Any suggestions would be much apprecieated!