They’re offered at very low prices because they’re often sold in bulk or through unofficial channels.
They’re offered at very low prices because they’re often sold in bulk or through unofficial channels.
Different verification methods exist between Win7 and older systems versus Win8 and newer ones. Only official Win7 keys (displaying brand names in COA) will recognize the motherboard. Non-branded keys can still be used as needed. I own a non-branded Win7 key too. Calling it illegal is a bit misleading; it likely doesn’t violate any laws. Still, selling OEM parts outside authorized channels goes against Microsoft’s terms of service. Retailers should only sell them with new hardware or complete systems. That adds credibility, similar to how a Nigerian prince assures you his bank confirms all transfers work perfectly 100% of the time. Also, eBay’s stance on OEM software isn’t clear—sellers claiming full compliance don’t necessarily mean they’re scam-free. It just suggests they avoid fraudulent practices.
Some OEM keys are available at retail outlets, but they remain OEM-issued and not genuine retail keys. These are intended for system builders and lack any support from Microsoft. OEM keys follow fixed pricing guidelines set by Microsoft, so finding them listed for just $5 online makes it nearly impossible to verify if the key is original, used, or stolen from an organization's ACPI/MSDM database.