Fix Activation Error 0x803F7001 in Windows 10

When Microsoft changed the way Windows activated since the release of Windows 10, upgrading to a new version of OS was supposed to be a lot easier. 

But that hasn’t really been the case. A lot of users are facing errors while activating Windows 10. In previous versions of Windows OS, you needed to enter the product key to activate it but in Windows 10 this has changed. 

Now it uses digital entitlement and entering a product is not necessary. It gets automatically activated if the prior version of windows was genuine. But this feature has its flaws too. People have noted and suggested getting Windows Error Code 0x803F7001.


Windows Error 0x803F7001, as you’ve already known is an activation error that prevents the system from upgrading to Windows 10. 

It means that Windows was unable to find a genuine Windows license. This error makes it impossible for you to activate the windows even when the download and installation go smoothly.

“Activation failed because this device doesn’t have a valid digital entitlement or product key. Error code: 0x803F7001”


What Causes Activation Error 0x803F7001 in Windows 10?

Error 0x803F7001’s error message does not give detailed information about the reasons that prevented the activation. 

To be honest, nobody really knows just which problem is causing this error. But it’s certainly one of these:

-Invalid Product Key

-Significant hardware changes

-Inauthentic Windows

-Windows servers are down

-Slui 4 not working


-Corrupted registry entries or damaged system files

-Outdated drivers


How To Fix Activation Error 0x803F7001 in Windows 10?

If you want to use Windows 10 features, it’s really necessary for you to resolve this issue. The first thing you should is to wait. As ridiculous as it sounds, it’s just as effective. 

Sometimes the Windows Authentication servers need a little time to catch up. Wait for a couple of days and if the error still exists follow these methods:

Change Product Key

Sometimes your product key can get altered unintentionally by viruses and malware. In this case, you have to change the re-enter or change the product key. If your windows were upgraded from windows 7/8.1, you’ll need its product key. Follow these steps:

-Press Windows + I key to open Settings

-Now go to Update & Security and on the left pane click on Activation and Change Product Key

-Click Yes if you get the User Account Control prompt

-Enter your original Windows 10 product key and if you don’t have one, Find the version of Windows 10 you’re using from the list below and enter it.

Windows 10 Home: YTMG3-N6DKC-DKB77-7M9GH-8HVX7

Windows 10 Pro: VK7JG-NPHTM-C97JM-9MPGT-3V66T

Windows 10 Home N: 4CPRK-NM3K3-X6XXQ-RXX86-WXCHW

Windows 10 Home Single Language: BT79Q-G7N6G-PGBYW-4YWX6-6F4BT

Windows 10 Home Country Specific: 7B6NC-V3438-TRQG7-8TCCX-H6DDY

Windows 10 Professional N: 2B87N-8KFHP-DKV6R-Y2C8J-PKCKT

-Click Next when you’re done entering the Product Key. You’ll receive a message saying We couldn’t activate Windows

-Now repeat the entire process but instead of entering the product key, enter the serial key of your previous Windows

-If the process is successful, you’ll get a message stating the version of windows you’re using is genuine.


Activate By Your Phone

If re-entering your product key doesn’t work, try mobile activation. First, try the automated system and then the manual support. Follow these steps:

-Press Windows + R key to open the Run dialogue box

-Type in Slui 4 and press OK

-Now Select your country and press Next

-You’ll see a toll-free number. Call it and enter your installation ID.

-You’ll be given a confirmation key, enter it and Activate.

Re-upgrade Windows 10

If none of the other methods works, this is the only solution left. Even though this takes a lot of time, it’s really effective. 

First, you’ll have to install a genuine version of Windows 7 or Windows 8.1 and activate it. Once you’ve activated it, upgrade it to windows 10 and try activating it. This will most probably work and you’ll no longer have to face Error 0x803F7001.

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