Of course you can.
They just don't want you to know you can do that.
There is an issue with the Windows 7 install since they no longer provide install discs.
You can work around this by making an ISO image of your recovery partition or HDD installed OS
and burning the ISO image on the SSD. Or you can use any Win7 install DVD to do a 'clean install'
on the SSD and use your laptop license key to activate.
You can save time by doing a Win7 SP 1 slipstream with the Win7 install DVD.How To Slipstream Windows 7 SP1 Into Installation DVD ISO