Select Start > Settings > Update & Security > Activation , and then select Troubleshoot to run the Activation troubleshooter. For more info about the troubleshooter, see Using the Activation troubleshooter.
Confirm that your device is up to date and running Windows 10, version 1607 or later.
Use the Activation troubleshooter to resolve simple errors.
If you’re still getting an error, check the list of error codes below and follow the suggested steps to resolve it.
Make sure the error hasn’t changed.
You receive error 0xC004F074 when you try to activate Windows: Key Server Managers (KMS) are not available.
Error code 0xC004C003 should occur when attempting to activate the operating system without questions using an OEM 3.0 Digital Activation Key. For more information about the error, always see: KB5001692: Windows activation is not working with 0xc004c003. The issue can be resolved by updating to a newer version of Windows.
If your current 0x8007007B error is caused by corrupted system files that normally prevent your Windows license from activating, running the System File Checker (SFC) will fix the problem automatically. If everything goes well, you can activate Windows without an error message.
You have entered a new product key that cannot be managed to activate Windows. Enter a specific, valid Windows 10 product key, or maybe even buy a new product key. For more information about activation, see the back cover of Windows 10.
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Here’s a summary of the important: Press the Windows key + R to open the Run dialog box.
At an elevated command prompt, type the following codes (press Enter after each) to upgrade the used key license to some of the good ones: slmgr /ipk
Now that the active key license has been successfully changed, run your personal file.
If you’re having trouble activating Windows 10, follow these steps to successfully resolve activation errors: Make sure your personal device is running the latest version of Windows 10, version 1607 or later.
Use the troubleshooter activation to fix simple errors.
If you’re still getting the error, check the error codes below and follow the suggested steps to fix it.
Make sure the error hasn’t changed.
To learn more.
Solution 2 – Use the built-in troubleshooter to activate. Open Settings by clicking the gear icon in the Start menu and clicking/tapping on the Update & Security section.
Click/tap “Activation” on the left and “Troubleshoot” on the right.
Not only do you see that your current Windows troubleshooter is activated.
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Windows Activation Error 0xC004F074 Press and hold Start + I to open Settings.
Navigate to Update security and click on it.
In the left pane, select On activation.
Select Phone activation.
Run the Product Activation Wizard.
In any case, open our menu and select “Settings”.
Select “Change PC settings”.
Click Activate Windows.
Select options such as Activate, Activate by Phone, or Contact Support for help.
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I’m Ahmir, a freelance writer and editor who specializes in technology and business. My work has been featured on many of the most popular tech blogs and websites for more than 10 years. Efficient-soft.com is where I regularly contribute to my writings about the latest tech trends. Apart from my writing, I am also a certified project manager professional (PMP).