: Since the product is just a string of 25 characters, it is incredibly easy for a seller to provide a fake or already-used code. While eBay's Money Back Guarantee provides some protection, the low price point often makes the hassle of a refund feel not worth the effort.
However, Microsoft does not view these eBay transactions as "authorized." From their perspective, a key purchased on eBay is often "non-genuine," even if it successfully activates the software. This creates a distinction between and legal licensing . A key might work today, but it doesn't necessarily mean you have the legal right to use it in a professional or audited environment. The Risks: Security and Longevity buying windows on ebay
The Digital Bargain: Navigating the Market of Windows Licenses on eBay : Since the product is just a string
: These are sold to large organizations or educational institutions for mass deployment. This creates a distinction between and legal licensing
: These are intended for large manufacturers like Dell or HP to pre-install on new hardware.
For the individual user, the risks of buying Windows on eBay are primarily functional rather than legal.
: Because many of these are volume keys, Microsoft may eventually detect that a single "business" key is being used by hundreds of individual eBay buyers and blacklist it, resulting in your Windows suddenly becoming "unactivated."
