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#OS #Windows10 – How to fix Windows 10 Error Code 0x803F7001 [Activation failed] : Windows 10 comes with a lot of features like Cortana, support for Windows Universal Apps and more. It totally makes sense that you would want to run Windows 10 on your device since it is one of the best Windows versions yet. But while activating your Windows 10 installation, you might run into some sort of problems. One of the biggest problems while activating Windows 10 is the Error 0x803F7001 which people face while activating Windows after upgrading to Windows 10.

This is a very common problem and has some really easy steps to solve this. But before we see how to solve this issue, let us see what exactly causes the Error 0x803F7001.

Reasons for Error 0x803F7001

This problem usually occurs for people who freshly install Windows 10 using a USB drive. It can even occur if you make any sort of hardware changes on your computer. For e.g. changing the Motherboard or updating your BIOS etc.

Now changing a hardware of BIOS triggers Windows 10’s Genuity check to make sure that the user is running a copy of Windows 10 that they own. This is quite annoying to the users who have to face this issue but solving it is also quite easy and we will see the process to fix Error Code 0x803F7001 in Windows 10.

Steps to fix Error 0x803F7001

Solution #1: Enter your Windows CD Key again

This is the first thing that one should do if they’re facing this error. Just head over to

  • Just head over to Start > Settings > Update and Security > Activation > Change Product Key.

  • Now you have your original CD key with you. Just enter that key here. It doesn’t matter if it is your Windows 7 or Windows 8/8.1 key. It will work.
  • After entering the key, proceed and wait for some time.

The key will be verified from Microsoft’s servers and your Windows 10 will be activated in no time. This should fix Windows 10 Error Code 0x803F7001, if not try following the solution 2.