It can also be used to check the MAK count.Ģ] Check Windows Key with Software Licensing User Interface If the key is not legit or is invalid, the software will give you a response back. While the Ultimate PID checker works for all versions before Windows 10, the Microsoft PID checker works for Windows 10 and Server 2016 only.ĭownload Microsoft PID Checker from here or Ultimate PID Checker from here. We have two tools here – The Ultimate PID Checker and Microsoft PID Checker – which you can use to find out if the Windows 10 key is legit. Read next: How to buy Windows 11 with a valid or legit license key. Let’s take a look at how you can find if your Windows Key is genuine. The second is when you have already used it, but still, want to check.First where you have the key, and you want to check before actually using it.And if somebody is authorized, and they offering a low price, make sure to ask them if the key will work even after reinstallation. It is best not to purchase a key from someone who is not authorized to sell Windows 11/10 keys. These keys can be activated on multiple computers or work for a couple of months. I have seen reports where many third-party sellers have sold these keys to consumers at a cheap price. Enterprise or big companies buy these keys to activate computers in bulk. There is one more type of key: Volume Licensing ( MAK and KMS). Windows 11/10 keys that consumer buys directly, are usually valid until the life of the machine ( Retail and OEM). How to check if my Windows Key is Genuine In this post, we will suggest a couple of ways to check if your Windows Product Licence Key is Genuine or Legit. The major problem why many consumers get a license – which is sold at a very low price – and which later turns out to be invalid is because they may be deactivated product keys or Volume license keys. So are Windows 11/10 keys that you buy from another site like Amazon, etc., legitimate or legal? That depends! But you need to be careful if you buy them from third-party websites. When you buy Windows Keys from Microsoft websites or get them from the OEMs, you can be sure that they are genuine. A copy of Windows is genuine only if it has been activated using a valid key.

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