Warning: There are "Tech Support Scams" pretending to be Windows 10 Activation Technologies. Please be vigilant. Microsoft never calls users to inform them their license is expiring. Neither should you get an email. Learn more in the following article:
PSA: Beware of Windows 10 Activation Tech Support Scams
Are you seeing a strange error message on your screen insisting your license will expire soon? Well, it could be for a variety of reasons. In this article we find out why and how you can correct it.
I notice some of these errors are occurring in mostly on computers running Windows 10 Pro and Enterprise editions. Both Pro and Enterprise are licensed to large organizations that deploy Windows 10 in bulk to hundreds or thousands of computers. Volume License clients such as Pro and Enterprise (as they are technically known), can also use different methods of activation. For mass activation, KMS licensing (Key Management Server) provides centralized management of activation requests for each client. This is also used to handle activation because KMS clients are not setup for permanent activation, since they expire every 180 days (6 months). This requires client computers to maintain in contact with organization server in order not go into reduced functional mode and result in errors like the above.
Overall, this reduces piracy of organization keys that was common in the past and also gives organization the right to reassign licenses easily. The problem is, organizations will sometimes list their organization keys on their websites for employees to copy to upgrade their clients to a organization supported edition. In fact, Microsoft even publicly list these activation keys where anyone can find and use. https://technet.microsoft.com/en-us/library/jj612867.aspx?f=255&MSPPError=-2147217396
So, this can occur depending on how Windows 10 was setup on your computer.
If you took your computer to a repair shop, they might have installed a non-genuine Windows 10 license. Either the repair technician didn't know which edition originally came preinstalled or made an assumption; or installed a copy that bypasses Windows 10 activation technologies.
You copied a Windows 10 Pro or Enterprise key off the Internet (usually a volume license - organization key) and changed on a Windows 10 Home or another edition. Windows 10 Pro and Enterprise are not free. If this is what you did, you will need to reinstall the previous edition or version you were running. You inadvertently installed the wrong edition.
The copy of Windows 10 you download and upgrade from should often correspond with the edition of Windows you have installed, if it does not, this is why you might be experiencing problems activating:
Windows 7 Starter, Home Basic, Home Premium, Windows 8.0 Core, Windows 8.1 Core will install Windows 10 Home
Windows 7 Professional, Windows 7 Ultimate, Windows 8.0 Pro, Windows 8.1 Pro will install Windows 10 Pro
To find out if you have the right edition installed:
Click Start > Settings > Update & security > Activation > Edition.
If the edition of Windows 10 installed does not correspond with the edition of Windows 7 or Windows 8 you were previously running, then you need to reinstall the right edition.
Windows 10 Home Edition also Reports Organization Activation Service
Windows 10 Home is not immune from the organization key errors too.
The error can occur for a number of reasons. It is possible, the OEM vendor might have used a OEM volume key to mass activate each machine imaged at the factory with Windows 10 Home. Users can try recovering the OEM Marker key embedded in the motherboard then use it to update the product key values.
Press Windows key + X
Click Command Prompt (admin)
Enter the following command:
wmic path SoftwareLicensingService get OA3xOriginalProductKey
The product key will be revealed, copy the product key then enter it
Click Start > Settings > Update & security > Activation > Change the product key then enter the new product key then click Next to Activate
If you are unable to activate Windows 10, try chat support:
Activate Your Windows 10 License via Microsoft Chat Support