Windows 10: Sold a computer to someone that needs my product or digital key

I sold a computer to a local guy after reformatting it. He can not access the computer because it ask for a digital key. How do I get it?


Can I transfer it to him by email?

:)

 

Product Key Not Working

Listings on Amazon are billed as windows 7 by microsoft but are actually sold by third parties, not MS. Contact the seller for a refund. Read the complete description which says-- Ships from
and sold by J&B Deals Express.

• Intended for distribution with a refurbished PC
• This product ships in an envelope or plastic case. it isn't for Mac.
• Make the things you do every day easier with improved desktop navigation.
• Easily create a home network and connect your PCs to a printer with HomeGroup.
• "Use of this OEM System Builder Channel software is subject to the terms of the Microsoft OEM System Builder License. This software is intended for pre-installation on a refurbished personal computer. This OEM System Builder
  Channel software requires the assembler to provide end user support for the Windows software and cannot be transferred to another computer once it is installed. To acquire Windows software with support provided by Microsoft please see our full package ""Retail""
  product offerings. Looking for your product key? The product key is a 25-digit string with a hyphen between each 5 digits. It will say ""Product Key"" before 25 digits or have an image of a key next to 10 digits with the remaining 15 on the next line below.
  The Product Key is generally located in the lower left corner of the DVD case, on the disc itself, or on a leaflet in the packaging you received."

It would be best to install windows 10 and purchase the activation key from the Windows store.

 

Product Key Not Working

Thanks for the help, started the return process already.

 

Product Keys sold online

Only Microsoft itself and Amazon.com is authorized to sell and distribute digital downloads of Microsoft products such as Windows and Office. Anybody else is likely reselling MSDN keys.

About MSDN or TechNet Product Keys

They are genuine Microsoft product keys, they are actually retail licenses, but it is intended for a particular product channel either the Microsoft Software Developer Network (MSDN) or TechNet for IT Professionals who pay a subscription
fee. The main purpose is for evaluation purposes. The great thing about them, unlike trial Microsoft software, MSDN or TechNet keys don't expire. Because the agreement under which the subscription is provided is a single license, none of the software should
be distributed outside of it. Even though its $50,000 worth of licenses, it is for one person only to use and no one else. Unfortunately, regardless of the licensing terms, persons still abuse the program, either giveaway product keys or resell it on auction
sites. Microsoft licenses it in good faith that customers won't do so, but I guess human nature wins out.

In your case, what probably happened is, you bought an MSDN licensed key, which carries up to 10 activations unlike full packaged retail licenses which only carry 1 activation. The person who sold it to you probably sold it to 10 other
persons. Somewhere along the way, one of those persons might have installed it on a second system, activated it, because it went past 10 activation threshold, Microsoft detected it that it was being abused and blocked the key from further use.