You might see this error if you entered a product key for a different edition of Windows than the edition installed on your device. You might also see this error if you previously upgraded to Windows 11, but the current edition of Windows installed on your device doesn't match the edition of your digital license. You can either enter a valid product key that matches the edition of Windows installed on your device or reinstall the edition of Windows 11 that matches your digital license.
If your device is running Windows 11 Version or later , the Activation troubleshooter can help you install the correct edition of Windows on your device. You might see this error if you entered a product key for a different version or edition of Windows. For example, a product key for the Enterprise edition of Windows 11can't be used to activate Windows 11 Home or Windows 11 Core editions.
Enter a product key that matches the version and edition of Windows installed on your device or buy a new copy of Windows from the Microsoft Store. You might see this error if you're not connected to the internet or your firewall settings are preventing Windows from completing the activation process online. Make sure that you're connected to the internet and your firewall isn't blocking Windows from activating.
If you're still having problems, try to activate Windows by phone. You might see this error if you try to activate a device that is already in the process of activation. Your device should be activated after the first request is completed. If the activation server is temporarily unavailable, your copy of Windows will automatically be activated when the service comes back online. You might see this error if the product key has already been used on another device, or it's being used on more devices than the Microsoft Software License Terms allow.
To fix the problem, buy a product key for each one of your devices to activate Windows on them. Select Go to Microsoft Store , then follow the instructions to buy Windows If you don't see Go to Microsoft Store on the Activation page, contact your organization's support person. If you made a substantial hardware changes to your device such as replacing the motherboard and you have a valid product key, try to activate Windows by phone. For more info about reactivating Windows 11 Version or later after a hardware change, see Reactivating Windows after a hardware change.
You might see this error if you entered a product key for the Enterprise edition of Windows to activate Windows 11 Home or Windows 11 Pro.
Enter a product key that matches the edition of Windows on your device. This error occurs when a Volume License a license that was bought from Microsoft by an organization to install Windows on multiple devices was used on more devices than the Microsoft Software License Terms allow. To fix the problem, you might need to use a different product key to activate Windows on your device. Contact your organization's support person for more info.
Try entering a product key that matches the edition of Windows on your device. Or, you might see this error if you're trying to activate your work device but aren't connected to your workplace's network. If you're connected to your work network and still see this error, you might need to change the network settings.
If your organization doesn't have a support person, you might need to enter your product key again:. Select Change product key , and then type your character product key. You might be asked for an admin password or to confirm your choice. You might see this error if the date and time for the device is incorrect, or Windows has trouble connecting to the online activation service and can't verify your product key. Verify date and time in Settings. In the search box on the taskbar, type network troubleshooter , then select Identify and repair network problems from the list of results.
If the network troubleshooter didn't find any problems with your network connection, try restarting your device to see if that fixes the problem.
You might see this error after installing third-party software that changed system files. Windows activation needs certain system files to complete activation. You can try to restore the system files back to an earlier point in time.
This removes any software you installed after that point in time without affecting your personal files. For more info, see the section about how to restore from a system restore point in Recovery options in Windows.
For more info about the troubleshooter, see Using the Activation troubleshooter. If this doesn't work, you might need to reset your device. For more info, see the section in Recovery options in Windows. An error occurred with our activation server or licensing service. You may encounter the 0xCF error after you have finished upgrading your system to Windows Additionally, you can try solution 3: execute slmgr.
Click to learn how to fix error code 0xCF Two: Windows activation error 0xF Click to learn how to fix Windows 10 activation error 0xF Three: Windows 10 activation error 0xB. The most possible reason for causing this error is the activation servers are being overwhelmed since there are too many upgrades. You may see 0xB in the following error messages:.
How to fix error 0xB when activating Windows 10? Way 1: fix date and time you have to make sure the settings of Date and Time are correct on your PC. Definitely, there are many other errors that may occur during the Windows activation process. Please get help with Windows activation errors by looking at this page , which lists more errors and the solutions to fix them.
Please note : you can use the MiniTool Partition Wizard to manage disks, partitions, and files reasonably. This essay published on MiniTool official page mainly discusses the topic of error code: 0xb Windows Just take a look at them and find your solution! It may appear when you failed to activate your operating system OS. Contact your system administrator to get a product key. Try activating Windows later. There are many causes for such a Windows activating error.
If you need additional activations, contact the Microsoft Licensing Activation Centers. The grace period expired before the system was activated. Now, the system is in the Notifications state.
For assistance, contact the Microsoft Licensing Activation Centers. If you are using MAK activation, use either online or phone activation to reactivate the system during the OOT grace period. If you are using KMS activation, check the Pid. Install the key. Error: Invalid Volume License Key. You must have a qualifying operating system license AND a Volume license Windows 7 upgrade license, or a full license for Windows 7 from a retail source.
The error text is correct, but is ambiguous. This information is required for KMS client activation. Windows 7 Volume editions are licensed only for upgrade. Microsoft does not support installing a Volume operating system on a computer that does not have a qualifying operating system installed.
If you receive error 0xee2 when you attempt to activate, use the phone activation method that follows instead. The Software Protection Service reported that the computer could not be activated. Please contact your system administrator. The count on the KMS host is not high enough. For Windows client , the KMS count must be greater than or equal to To obtain the current count on the KMS host, run Slmgr.
Troubleshoot the network connection between the KMS host and the client. Make sure that TCP port default is not blocked by a firewall or is otherwise filtered. KMS needs to be activated.
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