How to upgrade from Windows 10 Home to Pro free using this default key

If you have upgraded to or installed Windows 10 Home on your computer and would like to upgrade to Windows 10 Pro edition to test or try it, then things have become easier. Microsoft has made available for all a default product key for Windows 10 Pro that anyone can use to upgrade his or her Windows 10 Home to Windows 10 Pro, for free, right away. The OS will upgrade, but your copy of Windows 10 Pro will not be activated.

How to upgrade from Windows 10 Home to Pro free

Says Charles of Microsoft,

From your Windows 10 Home running Version 1511, enter the Windows 10 Pro Default key under change product key. VK7JG-NPHTM-C97JM-9MPGT-3V66T  This default key will not activate the system, just take you to Pro so you can activate using a valid Pro key that you will provide. Once you have done this, the system will go through an upgrade process from Home to Pro, but will not be activated on Pro.  You can now enter your Windows 8 Pro key into your Windows 10 Pro system and it will activate.

The way to do this is as follows:

Open Settings > Update & Security Activation Change Product key. Enter this product key in the provided space:


Your Windows 10 Home will get upgraded to Windows 10 Pro. But your copy will not be activated.

You can use your Windows 8 Pro key to activate it or you can buy a product license key and enter it to get it activated. Clicking on the Go to Store button will take you to the Windows Store, where you can complete your purchase.

Once you have done this, you can check your Windows 10 activation status.

This is all the information that is available about this.

Posted by on , in Category Windows with Tags
Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.


  1. Angad Cheema


  2. Phate

    The title of this article is misleading as at the end of the process you still have to purchase a valid windows pro key so it is not a free upgrade after all.

  3. earthquake10

    Since you still have to purchase a Windows 10 Pro license, it isn’t free after all, is it?

  4. G. Fisher

    Does this method offer any benefit?

  5. Le Lynx Smith

    After all Microsoft fails to tell us how long this trial will last after entering this bogus product key, then will annoy us by saying ” your windows is not genuine ” Please Microsoft is not April 1st yet.”

  6. artfudd

    Poorly researched information & poorly written – not clear at all..

  7. ErnieK

    As has been said. Very mis-leading title. This IS NOT a free upgrade. It is a trial of the Pro version with no mention of any possible problems when a user decides to revert back to the Home version. Or is this not allowed? [reverting back] and could it mean that the user must purchse a new licence for the Home version?

    Very dissapointed in you for posting a poorly researched article.

  8. Gordon

    Does this work for a Windows 8 Pro Upgrade License Key?? Can I roll back if problems occur with activation? Any help appreciated.

  9. This is all the information that is available about this.

  10. This is all the information that is available about this on Microsoft website.

  11. You can use the Windows 8 Pro key to activate it.

  12. It lets to check and try the Pro edition.

  13. That or use your Windows 8 Pro license to activate it.

  14. Hmm, I see your point. If you have a Windows 8 Pro key, you can use it to activate it. The default key lets you only upgrade the edition for free.

  15. Farmers (Mansfield)

    Except that ‘trying’ the Pro version implies you’re still free to revert back to the Home edition if you decide it’s not for you. This method leaves you stuck on Pro, and eventually having to provide a license (either 10, 8.1 or – presumably – 7) in order to activate it.

  16. earthquake10

    Unfortunately, MS says I have completely used up my # of activations, so I am stuck with forking over $99. Thanks anyway…

  17. genetics73

    Then why even post it? It’s ridiculous.

  18. DrSurfer

    I have a win 10 home laptop, and I have windows 8.1 key coming from MS Partner Action Pack (last year edition). Can I use to activate windows after migrating it to pro with the generic key? Is that 8.1 key still valid?

  19. DrSurfer

    I think you should try to activate by phone, if your is a legit key

  20. earthquake10

    Well, it is legit, but MS says it’s been installed to the maximum limit and that I must buy a new license. Kinda weird from my experience, but it sounds like MS just wants everybody on Windows 10.

  21. DrSurfer

    I answer myself: Microsoft action pack includes also win 10 pro licenses so I had no difficult in
    upgrading it.

  22. Christopher Frank

    How about just removing this article?? Highly deceptive. For example, “You can use your Windows 8 Pro key to activated it;” If you had Windows 8 Pro & Upgraded, you’d already have Windows 10 Pro. Plus, if one’s computer came with a Home Edition pre-installed & wanted the features of Pro, I’d broadly assume that person would be tech savvy enough to purchase an upgrade. This post simply adds an extra step to that process.

  23. X Lord B

    hed be beter of just changing the default key to his windows 8 pro key instead of putting in the default key here..

  24. Sorif Hossain

    i am upgrade windows 10 pro , i am go back to windows 10 home.please anyone can help me;

  25. Pk King XII

    This article should be taken down or have the title renamed as people are being mislead by the title which claims to make the move from Home to Pro free which is not the case. This aldo leaves people stuck in Pro which is not activated.

  26. Hanna Emilan

    Go to Google to search “vinhugo” to get 100% genuine key, fast delivered, great price, and of course works like a charm!

  27. suzy

    This site vanskeyscan help you solve your problem, it offers all versions of windows product keys and the keys are very cheap, you can go to have a look

  28. Mlaika Anas

    My default product key is my windows 8.1 product key to upgrade into windows 10, But I could not use it to upgrade. I searched and found a site, where I got cheap product key, For your reference, I’m sharing its name was ODosta Store, To get Windows 10 activation key, I recommend you to visit it.
    Anyway, Thanks for your detailed post. It helped me a lot.

  29. Abdiel

    thanks, it worked perfect with an activation issue i had, for some reason the original key product was invalid, in a sealed dvd, anyway I took your code and upgrade to win 10 pro and then after the product key works fine…

  30. Cj Vj

    My window showing error code 0x87E10BC6

  31. DrakkeN

    same here

  32. Scott E

    This no longer works!

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