Hi Marusho Lilac,
I agree with you. There are perhaps a dozen (maybe more) FQC numbers for the various versions of Windows 7 that Microsoft has released. And then for each FQC number, there are the prefixed versions, such as FQC-00765-DL (where the DL means download version
- one gets a link (in an e-mail) to a valid Windows 7 copy, and then also a valid product key).
One of the problems with Microsoft being so 'coy' about this is that honest people, who want to buy legitimate versions and are not interested in getting a bootleg copy and a pirated product key, and want to make sure they get a version of Windows 7 that
is right for them - they are thwarted in their efforts to ensure they have a legitimate copy and thwarted in their efforts to make an informed buy decision.
Now that Microsoft no longer sells Windows 7 and many vendors (such as newegg.com, the largest computer supply vendor in the US) no longer sell Windows 7, one must trust smaller vendors (some of which have very bad reputations based on reviews I have read),
or someone selling a legitimate and unused version on eBay, Amazon, or other website. Often the eBay sellers (Amazon, etc) do not know much about the product they are selling, so asking them about their 'sale item' is unfruitful. The eBay, Amazon, etc world
- and perhaps also the small vendor world - is truly a caveat emptor - buyer beware - world.
I eventually found a few vendors that were trustworthy and bought my two copies of Windows 7. For these, the product keys were valid and I am now up and running. But it was a lot of work (way more than it should have been) to ensure I was getting a legal
copy, a legitimate product key, and a full version of Windows 7 for my systems.