http://bfy.tw/ClhU 

buy one from ebay, plenty to choose from, cheap, quick delivery.

dimsim:

buy one from ebay, plenty to choose from, cheap, quick delivery.

What @chevrolux is really saying with that pretty amusing link is the fact using Windows 8 is not recommended given Windows 10 is a free upgrade to it (and unpatched Windows 8 / 8.1 installations were affected by Wannacry). If you're in need of a key you're best to buy Windows 10 straight from the Microsoft Store. It is technically against the Microsoft terms and conditions to resell a once used key.

Buying a key from eBay is also not recommended as I've seen plenty of sellers who are quite happy to sell either a pirated or dubious key. Always stick to new if possible.

michaelmurfy:

 

What @chevrolux is really saying with that pretty amusing link is the fact using Windows 8 is not recommended given Windows 10 is a free upgrade to it (and unpatched Windows 8 / 8.1 installations were affected by Wannacry). If you're in need of a key you're best to buy Windows 10 straight from the Microsoft Store. It is technically against the Microsoft terms and conditions to resell a once used key.

 

Buying a key from eBay is also not recommended as I've seen plenty of sellers who are quite happy to sell either a pirated or dubious key. Always stick to new if possible.

 

agreed, seems like OP was looking for a quick alternative route for a license rather than through a channel.

I have purchased plenty (30+) from Kinguin (win 7 and 10) with no issues .

https://www.kinguin.net/category/18536/windows-8-1-standard-oem-key/

Having said that why wouldn't you just get a Win10 key and skip the pain and suffering that comes with using 8.1

https://www.kinguin.net/category/22175/windows-10-home-oem-key/

dimsim:

 

 

 

agreed, seems like OP was looking for a quick alternative route for a license rather than through a channel.

 

and yet
"What the heck is that it's a genuine key I need. "

Want genuine : then buy from MS or PBTech etc .
want dodgy, buy some used key off someone or from some overseas seller .

If its for a reinstall on a laptop (just a guess), the key should be embedded in the bios . That key can be extracted & manually
entered in a reinstall if it isnt automatically detected/entered