I have a few questions regarding Windows 7 (and 8) licensing, I hope someone will be able to help me as I've asked around already and no one was able to told me for sure.
I need a licensed copy of Windows 7 (or 8, but preferably 7) for an office computer in a business company (in Europe).
I would of course like to get it as cheap as possible, preferably used or whatever it takes for it to be as cheap as possible while still legal of couruse.
So, can the retail copy be bought second hand and installed on another computer (after being deleted from the previous computer)? Can I get it that way?
What about OEM copies? Can I use one, second hand maybe? Probably not, right?
And what about the COA license? I've seen those offered online, is that legal for a company computer?
Is there anything else, any other way? I really don't know much about licensing and can't find the answers at the Microsoft pages. I emailed them but of course got no reply.
Thank you for your help in advance!