I upgraded my hard disk. Now my Windows 7 Professional product key is "stuck" on my old hard disk (which is now mounted as an external USB drive). I tried the sniffer product key programs to recover my product key (I have legitimately paid for and own the Windows 7 Professional key) but I am getting "do not have permission" error when sniffing old hard disk for product key.
Any ideas on how I might recover the Professional product key I own? (I have tried about 6 sniffer programs but all deny access to external Windows 7 directories)
Thanks for any help.