Fix Activation Error Code 0x803F7001 in Windows 10 with Microsoft Help Numbers +1-877-353-1149

Yet another Error Code that Windows 10 Users are facing recently is Error Code 0x803F7001. There are numerous errors that users are going through but Activation errors are most annoying.

This Activation Error Code 0x803F7001 in windows 10 is caused if you Clean install Windows 10 using flash drive. This Error may also occur if you update your BIOS.

Possibly there can also be issue with Microsoft activation Server and thus you are shown that your windows is not activated, In this case you can only wait and verify if it is the issue from Microsoft's side or the recent changes that you made to your PC.

Solving Error 0x803F7001 after upgrade to Windows 10

Method 1: Entering the Keys.

Go to Start > Settings > Update and Security > Activation > Change Product Key.

Now enter the Product key of the original OS you had earlier before Upgrading to Windows 10.

For Eg: If you had Genuine copy of windows 8 with Product key, You upgraded your PC to Windows 10 doing Clean install and get Error 0x803F7001,

Then navigate to Change Product key and Enter it there. Following Above steps should activate your Windows, but can not work Every time. Check Method 2.

Method 2: Activating Windows 10 using Phone.

This Method Requires you to use your Phone and Call the toll free number. The Method is Shared by one of the Microsoft Support Engineer.
Step 1: Keep holding Windows key and Press R key to open up Run Command.

Step 2: Type Slui 4 in the Run Windows that pops up and hit Enter.

Step 3: Next you will require to Select your Country/Region, So do it and Click Next.

Step 4: You will be Presented with Toll Free number, Use your Phone now and dial the Number to get the Confirmation ID.

Step 5: Once you get the Confirmation ID numbers, Enter them in A to H Field Exactly the way they are Provided.

Step 6: Now Click on Activate, That's all !!!

If this method fails to solve 0x803F7001 Windows 10 activation Error then, 3rd and the last method that i am listing below should work for you.

Nothing Helped eh?

If Above mentioned steps don't help you Then Dial Our Helpline Number +1-877-353-1149