I recently (as in yesterday) had to re-install Windows 7 on my notebook due to a REALLY REALLY nasty virus that all the scans could not get rid of. So I made sure all my files were backed up and wiped my hard drive clean and re-installed Windows.
Notebook works fine now, but I cannot re-install the Office 2007 Home & Student Edition. The Product Key is no longer valid because I installed it on three additional computers.
I don't want to have to purchase another CD-ROM, but would like to know how much it costs to purchase a new Product Key - if possible at all - so I can use the CD-ROM I already have.